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DOI： 10.1111/cga.12582

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Although children with orofacial clefts have an increased risk for sleep-disordered breathing, no studies have examined the association of sleep duration. Thus, this study aimed to examine associations between orofacial clefts and sleep duration at 1 month, 6 months, 1 year, and 3 years of age in Japan. A cohort study from the Japan Environment and Children's Study. This study consisted of 91 497 children, including ones with isolated cleft lip and palate (n = 69), isolated cleft lip only (n = 48), and isolated cleft palate only (n = 37), for which recruitment was undertaken during 2011 to 2014. Seep durations (hours per day) at 1 month, 6 months, 1 year, and 3 years of age, as reported by their mothers. In the control group, mean sleep durations and standard deviations at 1 month, 6 months, 1 year, and 3 years of age were 15.2 (2.5), 13.6 (1.9), 12.9 (1.6), and 11.6 (1.2) h, respectively. Compared to the control group, linear regression models reported effect sizes and 95% confidence intervals shorter than 1 h for sleep duration of each type of isolated orofacial cleft at each time point. This study suggested null associations between isolated orofacial clefts and sleep duration at 1 month, 6 months, 1 year, and 3 years of age. Children with isolated orofacial clefts had sufficient mean sleep duration.

DOI： 10.1177/10556656221128425

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Language：Japanese   Publisher：(公社)日本小児科学会  

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Socioeconomic status and smoking are reportedly associated with underweight and obesity; however, their associations among pregnant women are unknown. This study aimed to investigate whether socioeconomic factors, namely educational attainment, household income, marital status, and employment status, were associated with pre-pregnancy body mass index (BMI) categories, including severe-moderate underweight (BMI ≤ 16.9 kg/m2), mild underweight (BMI, 17.0-18.4 kg/m2), overweight (BMI, 25.0-29.9 kg/m2), and obese (BMI ≥ 30.0 kg/m2) among Japanese pregnant women using data from the Japan Environment and Children's Study (JECS). In total, pregnant women were included 96,751. Age- and parity-adjusted multivariable multinomial logistic regression analyses assessed socioeconomic factors and smoking associations with falling within abnormal BMI categories (normal BMI as the reference group). Lower education and lower household were associated with overweight and obesity, and, especially, lowest education and household income had relatively higher point estimate relative ratios (RRs) of 3.97 and 2.84, respectively. Regarding the risks for underweight, however, only junior high school education had a significantly higher RR for severely to moderately underweight. Regarding occupational status, homemakers or the unemployed had a higher RR for severe-moderate underweight, overweight, and obesity. Unmarried, divorced, or bereaved women had significantly higher RRs for mildly underweight status. Quitting smoking early in pregnancy/still smoking had higher RRs for all four not having normal BMI outcomes; however, quitting smoking before pregnancy had a higher RR only for obese individuals. Lower educational attainment and smoking are essential intervention targets for obesity and severe-moderate underweight prevention in younger women. Lower household income is also a necessary target for obesity.

DOI： 10.1371/journal.pone.0304844

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Language：Japanese   Publisher：(株)メディカルドゥ  

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Pathogenic variants of HECW2 have been reported in cases of neurodevelopmental disorder with hypotonia, seizures, and absent language (NDHSAL; OMIM #617268). A novel HECW2 variant (NM_001348768.2:c.4343 T > C,p.Leu1448Ser) was identified in an NDHSAL infant with severe cardiac comorbidities. The patient presented with fetal tachyarrhythmia and hydrops and was postnatally diagnosed with long QT syndrome. This study provides evidence that HECW2 pathogenic variants can cause long QT syndrome along with neurodevelopmental disorders.

DOI： 10.1038/s41439-023-00245-w

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Language：Japanese   Publisher：Japan Society of Perinatal and Neonatal Medicine  

DOI： 10.34456/jjspnm.59.1_77

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2023&ichushi_jid=J04116&link_issn=&doc_id=20230524470012&doc_link_id=%2Fdy1jspnm%2F2023%2F005901%2F012%2F0077-0081%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fdy1jspnm%2F2023%2F005901%2F012%2F0077-0081%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

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OBJECTIVES: Multimorbidity is defined as the coexistence of two or more chronic physical or psychological conditions within an individual. The association between maternal multimorbidity and adverse perinatal outcomes such as preterm delivery and low birth weight has not been well studied. Therefore, this study aimed to investigate this association. METHODS: We conducted a prospective cohort study using data from the Japan Environment and Children's Study of pregnant women between 2011 and 2014. Those with data on chronic maternal conditions were included in the study and categorised as having no chronic condition, one chronic condition or multimorbidities. The primary outcomes were the incidence of preterm birth (PTB), low birth weight (LBW) and small for gestational age (SGA). Adjusted logistic regression was performed to estimate ORs (aORs) and 95% CIs. RESULTS: Of the 104 062 fetal records, 86 885 singleton pregnant women were analysed. The median maternal age and body mass index were 31 years and 20.5 kg/m2, respectively. The prevalence of pregnant women with one or more chronic conditions was 40.2%. The prevalence of maternal multimorbidity was 6.3%, and that of PTB, LBW, and SGA were 4.6%, 8.1%, and 7.5%, respectively. Pre-pregnancy underweight women were the most common, observed in 15.6% of multimorbidity cases, followed by domestic violence from intimate partner in 13.0%. Maternal multimorbidity was significantly associated with PTB (aOR 1.50; 95% CI 1.33-1.69), LBW (aOR 1.49; 95% CI 1.35-1.63) and SGA (aOR 1.33; 95% CI 1.20-1.46). CONCLUSION: Maternal multimorbidity was associated with adverse perinatal outcomes, including PTB, LBW and SGA. The risk of adverse perinatal outcomes tends to increase with a rise in the number of chronic maternal conditions. Multimorbidity becomes more prevalent among pregnant women, making our findings important for preconception counselling.

DOI： 10.1136/bmjopen-2022-069281

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This study aimed to document the complication status of infants with orofacial clefts born between 2011 and 2014 in Japan. This was a descriptive study using data from the Japan Environment and Children's Study. Among 103 060 pregnancies, 248 infants with orofacial clefts were included (livebirth, 239; stillbirth, 4; miscarriage, 5). The items of interest were complication status of orofacial clefts: isolated (typical orofacial clefts only); multi-malformed (orofacial clefts with unrelated major defects); syndromic (orofacial clefts with a syndrome or a chromosomal defect). Regarding the cleft subtypes, of 248 infants with orofacial clefts, 104 had cleft lip with cleft palate (CLP) (41.9%), 68 had cleft lip without cleft palate (CL) (27.4%), 58 had cleft palate without cleft lip (CP) (23.4%), and 18 were nonclassified (7.3%). In infants with CLP, the proportions of isolated, multi-malformed, and syndromic phenotypes were 73.1%, 15.4%, and 11.5%, respectively. In infants with CL, the proportions were 79.4%, 16.2%, and 4.4%, respectively. In infants with CP, the proportions were 69.0%, 13.8%, and 17.2%, respectively. The most frequently associated congenital anomaly was congenital heart disease. In infants with syndromic CLP, 41.7% had trisomy 13. In infants with syndromic CP, 80.0% had the Pierre Robin sequence. Congenital heart disease could be the most frequently associated congenital anomaly. The most frequently associated syndrome could be trisomy 13 in those with CLP and Pierre Robin sequence in those with CP.

DOI： 10.1111/cga.12496

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BACKGROUND: In Japan, the mortality rate of extremely low birth weight (ELBW) infants is notably low in comparison with other developed countries, but the prevalence of chronic lung disease (CLD) and retinopathy of prematurity (ROP) is relatively high. This study aimed to estimate the mortality and morbidity of ELBW infants born in 2015 who were admitted to neonatal intensive care units (NICUs) in Japan and to examine the factors that affected the short-term outcomes of these infants. We also compared the mortality of ELBW infants born in 2005, 2010, and 2015. METHODS: We analyzed the mortality, morbidity, and factors related to short-term outcomes of ELBW infants, using data from 2782 infants born in 2015 and registered at NICUs in Japan. RESULTS: The mortality rates during NICU stays were 17.0%, 12.0%, and 9.8% for ELBW infants born in 2005, 2010, and 2015, respectively. Among ELBW infants born in 2015, multiple logistic regression analysis showed that short gestational age and low birthweight Z-score contributed to the increased risk of death. Births by cesarean section and antenatal corticosteroid administration were significantly associated with a reduced risk of death. Among infants who survived, CLD was observed in 53.1% and ROP requiring treatment was observed in 30.4%. CONCLUSIONS: Mortality in ELBW infants decreased significantly from 2005 to 2015. As CLD and ROP may affect quality of life and long-term outcomes of infants who survived, prevention strategies and management for these complications are critical issues in neonatal care in Japan.

DOI： 10.1111/ped.15493

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Urinary cotinine concentration (UCC) reflects smoking status. However, in pregnant women, its association with adverse birth outcomes related to fetal growth is not widely known. Thus, we aimed to explore this relationship by focusing on dose-response relationships. We investigated 86,638 pregnant women enrolled between 2011 and 2014 in a prospective cohort study in Japan and observed three birth outcomes (preterm birth, low birth weight, and small-for-gestational age). We measured UCC in the second or third trimester, and categorized the participants using cut-off values (negative cotinine concentration, passive cotinine concentration, and active cotinine concentration corresponding to non-smokers, passive smokers, and active smokers, respectively). Logistic regression analyses were conducted to evaluate the risks, and dose-response relationships were visualized using restricted cubic spline curves. Analyses based on self-reported smoking status were also performed. We found that in low active and highly active cotinine concentrations, the adjusted odds ratios (aORs) of birth outcomes were significantly increased (preterm birth, 1.24 [95% CI 1.06-1.46], 1.39 [95% CI 1.19-1.62]; low birth weight, 1.40 [95% CI 1.24-1.58], 2.27 [95% CI 2.05-2.53]; small-for-gestational age, 1.35 [95% CI 1.19-1.52], 2.39 [95% CI 2.16-2.65]). Restricted cubic spline curves demonstrated risk elevations in the active cotinine concentration range. Our research revealed dose-response relationships between UCC during pregnancy and the risks of preterm birth, low birth weight, and small-for-gestational age. Measurement of UCC to ascertain smoking status during pregnancy may be a useful approach for predicting the risks of these birth outcomes.

DOI： 10.1016/j.envres.2022.114302

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Language：Japanese   Publisher：日本小児臨床薬理学会  

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BACKGROUND: The extremes of maternal pre-pregnancy body mass index (BMI) are known to be risk factors associated with obstetric and adverse perinatal outcomes. Among Japanese women aged 20 years or older, the prevalence of underweight (BMI < 18.5 kg/m2) was 11.5% in 2019. Maternal thinness is a health problem caused by the desire to become slim. This study aimed to investigate the association between the severity of maternal low pre-pregnancy BMI and adverse perinatal outcomes, including preterm birth (PTB), low birth weight (LBW), and small-for-gestational age (SGA). METHODS: We conducted a prospective cohort study using data from the Japan Environment and Children's Study, which recruited pregnant individuals between 2011 and 2014. Pre-pregnancy BMI was categorized as severe-moderate underweight (BMI < 16.9 kg/m2), mild underweight (BMI, 17.0-18.4 kg/m2), low-normal weight (BMI, 18.5-19.9 kg/m2), high-normal weight (BMI, 20.0-22.9 kg/m2), overweight (BMI, 23.0-24.9 kg/m2), and obese (BMI ≥ 25.0 kg/m2). The high-normal weight group was used as the reference for statistical analyses. Adjusted logistic regression was performed to evaluate the association between pre-pregnancy BMI and PTB, LBW, and SGA. RESULTS: Of 92,260 singleton pregnant individuals, the prevalence was 2.7% for severe-moderate underweight, 12.9% for mild underweight, and 24.5% for low-normal weight. The prevalence of adverse outcomes was 4.6% for PTB, 8.1% for LBW, and 7.6% for SGA. The adjusted odds ratios (aORs) for PTB were 1.72 (95% confidence interval [CI], 1.46-2.03) for severe-moderate underweight and 1.26 (95% CI, 1.14-1.39) for mild underweight. The aORs of LBW were 2.55 (95% CI, 2.27-2.86) for severe-moderate underweight, 1.64 (95% CI, 1.53-1.76) for mild underweight, and 1.23 (95% CI, 1.16-1.31) for low-normal weight. The aORs of SGA were 2.53 (95% CI, 2.25-2.84) for severe-moderate underweight, 1.66 (95% CI, 1.55-1.79) for mild underweight, and 1.29 (95% CI, 1.21-1.38) for low-normal weight. CONCLUSIONS: A dose-response relationship was found between the severity of low pre-pregnancy BMI and PTB, LBW, and SGA. Even low-normal BMI (18.5-19.9 kg/m2) increased the risk of LBW and SGA. This study provides useful information for pre-conception counseling in lean individuals.

DOI： 10.1186/s12884-022-04418-3

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BACKGROUND: Iron deficiency during infancy is associated with poor neurological development, but iron overload causes severe complications. Appropriate iron supplementation is therefore vital. Reticulocyte hemoglobin content (RET-He) provides a real-time assessment of iron status and chracterezes hemoglobin synthesis in preterm infants. However, the existing literature lacks detailed reports assessing chronological changes in RET-He. The aim of this study was to assess the chronological changes in RET-He during oral iron dietary supplementation, and concomitant therapy with recombinant human erythropoietin (rHuEPO) in preterm very low birthweight infants. METHODS: Very low birthweight infants, admitted to our neonatal intensive care unit were analyzed retrospectively. Hemoglobin (Hb), reticulocyte percentage (Ret), mean corpuscular volume, RET-He, serum iron (Fe), and serum ferritin were recorded. Data at birth (T0), the initial day of rHuEPO therapy (T1), the initial day of oral iron supplementation (T2), 1-2 weeks (T3), 3-4 weeks (T4), 5-6 weeks (T5), and 7-8 weeks (T6) from the initial day of oral iron supplementation were extracted, and their changes over time were examined. RESULTS: Reticulocyte hemoglobin content was highest at birth and declined rapidly thereafter, especially after starting rHuEPO therapy. There was no upward trend in RET-He after the initiation of oral iron supplementation, with a slower increase during 5-6 weeks after the initiation of iron therapy. CONCLUSIONS: During the treatment of anemia of prematurity, low RET-He levels may be prolonged. Anemia of prematurity should therefore be assessed and treated on a case-by-case basis, while considering the iron metabolic capacity of preterm infants.

DOI： 10.1111/ped.15330

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DOI： 10.1111/ped.14984

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DOI： 10.1111/ped.14855

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DOI： 10.1111/ped.14625

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DOI： 10.1111/ped.14583

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DOI： 10.21203/rs.3.rs-530936/v1

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Language：Japanese  

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INTRODUCTION: Although imatinib is the first-line of therapy for Philadelphia chromosome (Ph)-positive chronic myeloid leukemia (CML), in Japan, it is recommended by the manufacturer that lactating women treated with imatinib mesylate for CML should discontinue breastfeeding their infants. CASE: A 32-year-old pregnant patient was diagnosed with Ph-positive CML at 13 weeks of gestation. She received imatinib (400 mg/day) after 28 weeks of gestation. A female infant was delivered at a gestational age of 35 weeks and 3/7 days after preterm premature rupture of membranes. It was decided to feed only colostrum to the infant and formula feeding was done subsequently because of the risk of the transfer of imatinib to breast milk. The milk/plasma (M/P) ratio and the relative infant dose (RID) for imatinib were calculated to be 0.35 and 1.4%, respectively at 5 days of life. Moreover, the serum level of imatinib in the child of age 5 days was 27 ng/mL, which was much lower than the target trough value for CML (1000 ng/mL). CONCLUSION: The M/P ratio and RID values for maternally administered imatinib were within the safe range for breastfeeding, as reported in previous studies. In addition, it was found that the serum concentration of imatinib in the child was relatively low during short-term breastfeeding.

DOI： 10.1177/1078155220948942

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Clinical diagnosis of transient abnormal myelopoiesis (TAM) relies on the detection of characteristic blasts and leukocytosis in peripheral blood. We report two patients of trisomy 21 with TAM with hypereosinophilia, who had neither circulating blasts nor leukocytosis. Genetic testing of polymorphonuclear leukocytes isolated from whole blood revealed heterozygous mutations in GATA1, suggesting that the mutations were harbored in increased eosinophils. Both patients had direct hyperbilirubinemia and one died of liver fibrosis. Our findings emphasize the importance of screening for GATA1 mutations in neonatal infants with Down syndrome and hypereosinophilia even if blasts are not detected in peripheral blood smears.

DOI： 10.1080/08880018.2020.1826070

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Language：Japanese   Publisher：(株)診断と治療社  

DOI： 10.34433/j00642.2021054057

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2020&ichushi_jid=J00642&link_issn=&doc_id=20201117090023&doc_link_id=%2Fae4shond%2F2020%2F008312%2F024%2F1813-1816%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fae4shond%2F2020%2F008312%2F024%2F1813-1816%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：日本小児臨床薬理学会  

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Language：Japanese   Publisher：(公社)日本小児科学会  

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BACKGROUND: Basal meningoceles are rare congenital defects and often clinically occult until they result in life-threatening complications. Therefore, it is important to know the diagnostic clues to early diagnosis. CASE PRESENTATION: We describe three cases of congenital basal meningocele in a 3-year-old Japanese boy, a 1-month-old Japanese baby boy, and a 10-month-old Japanese baby girl. One of our patients died of sepsis due to traumatic rupture of the meningocele during nasal suction. His meningocele remained undiagnosed until it resulted in the fatal complication. The other patients underwent surgical repair without any complications. Their meningoceles were complicated by midfacial anomalies including cleft palate and hypertelorism, or a sign of nasal obstruction such as snoring. CONCLUSIONS: These clinical features may be a clue to the early diagnosis of congenital basal meningocele, which enables its safe preoperative management and provides an opportunity for surgical repair before the condition results in serious complications.

DOI： 10.1186/s13256-017-1497-7

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：旭川医科大学  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2017&ichushi_jid=J03513&link_issn=&doc_id=20171127380020&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F5818&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F5818&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：(公社)日本小児科学会  

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Language：English   Publisher：(公社)日本新生児成育医学会  

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DOI： 10.1097/MEG.0000000000000504

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Short-rib polydactyly syndrome type III is an autosomal recessive lethal skeletal ciliopathy, which is phenotypically similar to nonlethal asphyxiating thoracic dystrophy. Mutations in DYNC2H1 have been identified in both of these disorders, indicating that they are variants of a single disorder. However, short-rib polydactyly syndrome type III is the more severe variant. Here, we report novel compound heterozygous mutations in DYNC2H1 (p.E1894fsX10 and p.R3004C) in a patient with typical short-rib polydactyly syndrome type III phenotype. R3004 is located within the microtubule-binding domain of DYNC2H1, and its substitution is predicted to disrupt the interaction with microtubules. Considering the severe phenotype of our patient, our findings suggest that R3004 may be a key residue for the microtubule-binding affinity of dynein.

DOI： 10.1111/cga.12098

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OBJECTIVE: There is little available data on airway humidity during high-frequency ventilation (HFV). The purpose of this study is to evaluate the temperature drop in an endotracheal tube (ETT) during HFV. METHODS: We examined the airway temperature in a neonatal HFV system using Babylog® 8000 plus. We measured the temperature change of inspired gases in the ETT under various oscillatory frequencies and oscillatory volumes with a fixed base flow. The temperatures in the ETT during HFV were compared with the temperatures during conventional intermittent positive pressure ventilation (IPPV). RESULTS: As the oscillatory frequency was increased and the oscillatory volume (VThf) decreased, the difference in temperature between the Y piece and the inlet of an artificial lung in the ETT (ETT outside of body) increased. However, as the oscillatory frequency increased, there was no difference in the ETT temperature under constant oscillatory volume. In contrast, as the oscillatory volume was decreased, the difference in temperature in the ETT was greater under constant oscillatory frequency. Moreover, the temperature drop in the ETT with HFV was lower than that in the IPPV temperature with a similar respiratory volume. CONCLUSIONS: The temperature change in the ETT was not dependent on the oscillatory frequency when the oscillatory volume was fixed; however, the temperature was dependent on the oscillatory volume when the oscillatory frequency was fixed.

DOI： 10.1002/ppul.22973

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Language：Japanese   Publisher：(公社)日本小児科学会  

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BACKGROUND: Although physical properties of neonatal-infantile stratum corneum (SC) change drastically after birth, precise developmental alterations of specific sites have not been fully elucidated. OBJECTIVE: To determine the longitudinal alterations of neonatal-infantile SC functions and components of upper thighs and diaper-covered buttocks during the first year of life. The data were compared with those of adults. METHODS: Nineteen full-term neonates and their mothers were subjected to the measurements. Skin hydration, water sorption/retention capacity, TEWL were measured. Superficial SC analyses for NMF, ester binding sebum, and free fatty acids were performed by ATR-FTIR spectrometer. Total amount of ceramides (CERs) and CER subclasses were analyzed by NPLC-ESI-MS. RESULTS: SC hydration of neonatal thighs was lower than that of their mothers, which rapidly increased during the 1st month. Skin hydration of neonatal buttocks was similar to that of their mothers. This also rapidly increased during the 1st month. The neonatal TEWL was less than those of their mothers indicating more efficient barrier function at both sites, which significantly increased during the 1st year development. This was mostly correlated decreased in the ω-hydroxy fatty acid-esterified CERs. Superficial ester-binding sebum content of neonates was similar to that of their mothers, which significantly decreased during the measurement; the decrease was more marked on buttocks. Neither NMF nor FFA of the superficial SC showed significant alteration during the 1-year development. CONCLUSION: Our results indicate that physical functions and components of neonatal-infantile SC show considerable alterations between diaper-covered buttocks and upper thighs during the 1st year development.

DOI： 10.1016/j.jdermsci.2013.08.015

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BACKGROUND AND PURPOSE: A thrombosed dural sinus malformation (DSM) is a rare condition, the clinical features of which have not yet been completely characterized. Here, we describe the clinical course of a patient with a thrombosed DSM and discuss the outcomes in live birth cases from a review of the literature. CASE DESCRIPTION: An ultrasonography examination of a 32-year-old woman at 25 weeks' gestation indicated a fetal posterior fossa mass. The size of the intracranial mass remained constant during the second trimester and was observed to decrease from 33 weeks of gestation. A postnatal diagnosis of thrombosis in the dural sinus was established by magnetic resonance imaging and venography. No brain damage or hydrocephalus was noted. Although the circumference of the infant's head was enlarged at birth, her neurological outcome was normal at 1 year of age. CONCLUSIONS: Although normal cranial circumference is reportedly an essential factor for a favorable prognosis, the patient in this report with a cranial circumference at + 2.0 SD (35.6 cm) had a favorable prognosis. Further studies focused on improving clinical diagnostic accuracy in this rare entity will facilitate appropriate counseling.

DOI： 10.1111/jon.12099

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Since the mid-1980s, there have been increasing reports of severe invasive group A streptococcal (GAS) disease in children and adults. There are few reports, however, of neonatal invasive disease, particularly neonatal pleural empyema caused by GAS. Although many mechanisms have been reported for the pathophysiology of invasive GAS infections, similar reports for neonates were unable to be located. Reported herein is the case of a 3-day-old girl with pleural empyema caused by GAS that demonstrated a high invasive capacity for human epithelial cells.

DOI： 10.1111/ped.12061

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Language：Japanese   Publisher：名寄市立総合病院  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2013&ichushi_jid=J03201&link_issn=&doc_id=20130822210008&doc_link_id=https%3A%2F%2Fsapmed.repo.nii.ac.jp%2Frecords%2F13684&url=https%3A%2F%2Fsapmed.repo.nii.ac.jp%2Frecords%2F13684&type=%E6%9C%AD%E5%B9%8C%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%9C%AD%E5%B9%8C%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%A9%9F%E9%96%A2%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_ikor&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80183_3.gif

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BACKGROUND: As the presence of fetal hemoglobin (HbF) affects the accuracy of hemoglobin A1c (HbA1c) analysis methods, HbA1c measurement may not be a good indicator for patients with neonatal diabetes mellitus, whereas glycated albumin (GA) may be a good indicator. OBJECTIVE: To investigate whether total glycated hemoglobin (GHb) or HbF-adjusted HbA1c (adj-HbA1c) can act as a glycemic control marker in infants. SUBJECTS AND METHODS: Plasma glucose (PG), GA, HbF, GHb measured using the affinity method, and HbA1c measured using the latex-immunoturbidimetry (LA) or the high-performance liquid chromatography (HPLC) methods were determined in 26 full-term newborn infants aged 4-234 d. Adj-HbA1c was calculated as HbA1c/(total Hb - HbF). RESULTS: GHb, adj-HbA1c measured using the LA and the HPLC methods were 4.8 ± 0.5%, 4.5 ± 0.5%, and 4.7 ± 0.6%, respectively. GA was most positively correlated with PG (r = 0.696, p < 0.0001). GHb was positively correlated with both PG (r = 0.479, p = 0.013) and GA (r = 0.727, p < 0.0001). Adj-HbA1c measured using the LA method was positively correlated with GA (r = 0.465, p = 0.017), but not PG (r = 0.304, p = 0.132). Adj-HbA1c measured using the HPLC method was correlated with neither PG (r = -0.077, p = 0.710) nor GA (r = 0.360, p = 0.071). CONCLUSIONS: GHb measured using the affinity method may be a useful glycemic control marker in infants. Although adj-HbA1c measured using the LA method was correlated with GA, it may not be a practical measure because it was not correlated with PG and determining HbF levels using HPLC method can be troublesome. Adj-HbA1c measured using the HPLC method should not be used as a glycemic marker in infants.

DOI： 10.1111/pedi.12013

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Language：Japanese   Publisher：(一社)日本周産期・新生児医学会  

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BACKGROUND: Glycated albumin (GA) reflects glycemic control in patients with neonatal diabetes mellitus (NDM). However, GA in NDM patients is apparently low in relation to glycemia. OBJECTIVE: To establish the reference intervals for GA in healthy infants. SUBJECTS AND METHODS: Fifty-eight healthy, full-term newborn infants were used to define the GA reference values and to investigate its relationship to plasma glucose (PG) and serum albumin. The infants were categorized into three groups according to age: group A, 5 (4-6) median (range) d: n = 18; group B, 33 (30-38) d: n = 19; and group C, 181 (50-352) d: n = 21. We also studied 212 non-diabetic adults [group D, 53 (28-78) yr old] and the 5 NDM patients previously reported for GA comparisons. RESULTS: In the infants, GA was strongly positively correlated with logarithmic transformation of age [log (age)] (p = 0.831, p < 0.0001). The GA in groups A, B, C, and D were 7.3 ± 1.0%, 8.6 ± 1.1%, 10.9 ± 0.8%, and 14.0 ± 1.1%, respectively. The GA was more strongly positively correlated with serum albumin (r = 0.768, p < 0.0001) than with PG (r = 0.596, p < 0.0001). When GA levels were compared with the age-dependent reference values, GA in the transient NDM patient was normalized although GA in the four permanent NDM patients decreased but remained high after insulin therapy. CONCLUSIONS: This study showed that the reference range for GA in infants is lower than that of adults and increases with age, with which we confirmed that GA in the NDM patients reflected the clinical course. Consequently, GA in NDM patients should be compared with the age-based reference values to assess the accurate glycemic status.

DOI： 10.1111/j.1399-5448.2012.00895.x

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Heterozygous COL2A1 mutations create a group of skeletal dysplasias collectively termed type II collagenopathies. Sporadic cases of type II collagenopathies are almost exclusively caused by de novo mutations. Very few cases with intrafamilial recurrence due to germinal mosaicism have been known. We report here on a family in which a severe form of skeletal dysplasia was recurrent in two sibs whose phenotype was most consistent with platyspondylic lethal skeletal dysplasia Torrance type (PLSD-T). A COL2A1 analysis showed that the two sibs had a heterozygous mutation in the encoded triple helical region of COL2A1, c.3545G>A (p.Gly1182Asp) in exon 50. The parents did not consent to a molecular analysis; however, the presence of the same mutation in the two sibs is proof of germinal mosaicism in one of the parents. PLSD-T has been shown to arise from a heterozygous dominant negative COL2A1 mutation in the encoded C-propeptide region. However, our observation suggests that the phenotype is also caused by a COL2A1 mutation in the encoded C-terminal triple helical region.

DOI： 10.1002/ajmg.a.35509

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Language：Japanese   Publisher：(一社)日本周産期・新生児医学会  

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BACKGROUND: Disseminated neonatal herpes simplex virus (HSV) infection causes a typical systemic inflammatory response syndrome and has a high mortality rate. However, the validity of anti-inflammatory intervention against this condition remains unknown. OBJECTIVES: We sought to demonstrate the sequential changes in the pathophysiology of disseminated neonatal HSV infections. STUDY DESIGN: The HSV serum copy number as well as high-mobility group box 1 (HMGB1) and cytochrome c concentrations, which predict the severity and mortality rate of sepsis, were sequentially evaluated in a patient with disseminated neonatal HSV infection caused by HSV-2. RESULTS: As the patient presented with evidence of hyper-inflammation and severe illness, we empirically undertook anti-inflammatory intervention that included the administration of prednisolone, high-dose immunoglobulin, and blood exchange therapy in addition to high-dose acyclovir (ACV) therapy. The patient survived without significant neurological sequela. We found that (1) the serum concentrations of both HMGB1 and cytochrome c were extremely high, (2) temporal increases in these biomarkers were observed after admission, and (3) interestingly, the increase in HMGB1 level preceded that of cytochrome c. These results suggested that the pathophysiology of this condition changed sequentially in a dramatic manner, and the timing of our anti-inflammatory intervention was prior to the transition of pathological status from hyper-inflammation to massive apoptosis. CONCLUSIONS: Anti-inflammatory intervention may only be effective if it is undertaken during the early phase of disseminated neonatal HSV infections.

DOI： 10.1016/j.jcv.2011.12.017

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To investigate the correlation between maternal and fetal angiotensin-converting enzyme gene insertion or deletion polymorphism and birth size, angiotensin-converting enzyme gene insertion or deletion polymorphisms of 470 Japanese pairs of mothers and infants were genotyped. The relationships between maternal and fetal angiotensin-converting enzyme gene insertion or deletion polymorphisms and birth sizes (weight, length, head circumference, and the incidence of small-for-gestational age status) were analyzed. No relationship between fetal angiotensin-converting enzyme genotype and birth size was observed. In contrast, the incidence of small-for-gestational age status in babies whose mothers had 1 or 2 deletion alleles was greater than that in babies whose mothers had 2 insertion alleles (7% vs 3%, P  =  0.045). Maternal deletion allele of angiotensin-converting enzyme is associated with fetal growth restriction in the Japanese normal population.

DOI： 10.2350/11-09-1092-OA.1

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Language：Japanese   Publisher：日本小児腎不全学会  

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Language：Japanese   Publisher：(一社)日本周産期・新生児医学会  

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All patients with terminal deletion of chromosome 15q have been reported to show intrauterine growth retardation, postnatal growth retardation, abnormal facial appearance and developmental delay. Haploinsufficiency of IGF1R was considered to be responsible for these symptoms. However, it is difficult to explain other symptoms seen in some of the patients, such as congenital heart defects by the absence of IGF1R alone. Here, we reported a patient with congenital heart defects and a 5.78 Mb terminal deletion of chromosome 15q detected by array-CGH. Among the patients reported to share congenital heart defects and terminal deletion of chromosome 15q, our patient had the smallest deletion. Evaluating the deletion map, NR2F2 was considered a candidate gene contributing to congenital heart defects in patients with terminal deletion of chromosome 15q.

DOI： 10.1016/j.ejmg.2010.12.004

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Campomelic dysplasia (CD) is a rare and usually fatal congenital skeletal disorder with respiratory failure. The SOX9 gene has been cloned as a candidate gene for CD. Here, we report the cases of 2 Japanese patients with CD who have survived for over 5 years. Molecular investigations revealed novel frameshift mutations in SOX9 in these patients; a single G insertion in 1 allele at nucleotide 261 (261-262insG) and a single C insertion in 1 allele at nucleotide 888 (888-889insC). The predicted protein of 261-262insG may lack more than 80% composition of the normal SOX9 protein, including the SRY high mobility group (HMG) domain and the transactivation (TA) domain; the predicted protein of 888-889insC may not contain the normal TA domain. Although it has been reported that most patients with CD die during the neonatal period, our patients have survived for a long time, despite putative severely impaired SOX9 proteins.

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Language：Japanese   Publisher：(公社)日本小児科学会  

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BACKGROUND: In approximately 60% of infants with posthemorrhagic hydrocephalus (PHH), ventricular dilation resolves by unknown intrinsic mechanisms, without the need for a shunt operation. A pathological hallmark of PHH is extensive deposition of extracellular matrix (ECM) proteins in the subarachnoid space. Our previous study revealed that matrix metalloproteinase (MMP)-9, which degrades ECM proteins, may play an important role in the resolution of ventricular dilation. MMP-9 is known to be induced by hepatocyte growth factor (HGF) in various cell lines. AIMS: The aim of this study is to confirm our earlier finding that MMP-9 contributes to the resolution of PHH, and to investigate whether HGF also contributes to this process. STUDY DESIGN: Cerebrospinal fluid (CSF) samples were collected from 13 infants who developed ventricular dilation after intraventricular hemorrhage (IVH). Of these infants, 9 exhibited resolution of ventricular dilation without shunt operation; however, 4 infants had to be treated with shunt operation. The CSF levels of MMP-9 and HGF were measured using an enzyme immunoassay. RESULTS: Significantly higher CSF levels of MMP-9 and HGF were detected in patients in whom the ventricular dilation resolved without shunt operation than in those with progressive ventricular dilation (MMP-9: median, 128ng/ml; range, 47-900ng/ml vs median, 50ng/ml; range, 12-110ng/ml; p<0.05; HGF: median, 2.42ng/ml; range, 0.81-7.04ng/ml vs median, 1.42ng/ml; range, 0.67-3.87ng/ml; p<0.05). CONCLUSIONS: Our results indicate that MMP-9 and HGF may participate in the resolution of ventricular dilation following IVH.

DOI： 10.1016/j.earlhumdev.2010.03.007

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Language：Japanese   Publisher：(公社)日本小児科学会  

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IGF-II associates with feto-placental growth in rodent and human. We determined three tag-single nucleotide polymorphisms (SNPs) to investigate haplotype frequency of IGF2 relative to size at birth in 134 healthy Japanese infants. In addition, a total of 276 healthy infants were investigated to determine whether common genetic variation of IGF2 might contribute to feto-placental growth using haplotype analysis. Further, quantitative methylation analysis of the IGF2/H19 was performed using the MassARRAY Compact system. In the initial study, the frequency of haplotype CTG from the paternal allele in small for date (SFD) infants was significantly higher than that in non-SFD infants (p = 0.03). In a second study, the CTG haplotype infants exhibited significantly lower birth length, weight, and placental weight compared with non-CTG infants. Further, the number of infants less than -1.5 SD (SD) birth weight in CTG haplotype was higher than those in non-CTG infants. There was no significant difference in the methylation status of H19/IGF2 in the two haplotypes. In conclusion, inheriting the IGF2 CTG haplotype from a paternal allele results in reduced feto-placental growth, but it is not associated with the methylation status of IGF2/H19.

DOI： 10.1203/PDR.0b013e3181a9e818

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Other Link： http://amcor.asahikawa-med.ac.jp/modules/xoonips/detail.php?id=19390492

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Transforming growth factor (TGF)-beta1, a cytokine released into the cerebrospinal fluid (CSF) after intraventricular hemorrhage (IVH), stimulates the expression of the components of the extracellular matrix (ECM), which causes progressive ventricular dilatation by impaired CSF absorption. Matrix metalloproteinase-9 (MMP-9), a proteinase involved in the removal of ECM proteins, has been shown to contribute to the resolution of progressive ventricular dilation after IVH. The aim of this study is to clarify the mechanism by which MMP-9 is expressed following IVH. Cultured human meningeal cells were treated with human recombinant TGF-beta1. RT-PCR demonstrated that TGF-beta1 induced MMP-9 expression in the meningeal cells in a dose-dependent manner. The TGF-beta1-induced MMP-9 expression was attenuated in the presence of either MEK or Smad 3 inhibitor. Our data indicated that MMP-9 is released into the CSF from meningeal cells in response to TGF-beta1, most probably through the activation of ERK and Smad pathways.

DOI： 10.1016/j.bbrc.2009.04.038

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OBJECTIVE: Little data are available on airway humidity during high-frequency ventilation (HFV). Our purpose is to evaluate the airway humidification during HFV. METHODS: We examined the airway humidification and temperature in a neonatal HFV system using Babylog 8000 plus. The absolute humidity (AH), relative humidity (RH), and temperature at different sites and under different HFV conditions were compared with those during conventional intermittent positive pressure ventilation (IPPV). RESULTS: The mean AH and RH at the patient end of the respiratory circuit under 37 degrees C in the humidification chamber (HC) during HFV were less than 35 mg/L and 65%, respectively, while those during IPPV were 42.3 mg/L and 96.8%, respectively. The humidification at the outlet of the HC was similar results. Moreover, during HFV an increase in the bias-flow of ventilator led to a further decrease in the humidity at the patient end of respiratory circuit and the outlet of HC. It was necessary to set the temperature in the HC at >39 degrees C to maintain adequate humidity at the HC and the patient end of respiratory circuit during HFV. An increase in the incubator temperature led to an increase in the temperature at the patient end of the respiratory circuit. The temperature at the patient end of the respiratory circuit was about 39-40 degrees C when the incubator temperature was 35-37 degrees C. CONCLUSIONS: The airway humidification at the patient end of respiratory circuit and the outlet of HC in HFV were poorer than those in IPPV. However, the adequacy of humidification and safety in HFV remain to be demonstrated in clinical practice.

DOI： 10.1002/ppul.20990

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(公社)日本新生児成育医学会  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2008&ichushi_jid=J04116&link_issn=&doc_id=20080905460007&doc_link_id=%2Fdy1jspnm%2F2008%2F004403%2F007%2F0702-0705%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fdy1jspnm%2F2008%2F004403%2F007%2F0702-0705%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2008&ichushi_jid=J00621&link_issn=&doc_id=20080325150021&doc_link_id=%2Faq9syuse%2F2008%2F003803%2F021%2F0369-0373%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2008%2F003803%2F021%2F0369-0373%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

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The cerebrospinal fluid matrix metalloproteinase (MMP) activities were measured in infants with posthemorrhagic hydrocephalus to elucidate the intrinsic mechanism for the resolution of ventricular dilation. Increased MMP-9 activities were observed in the patients who escaped a shunt operation, suggesting its potential contribution to the resolution of ventricular dilation.

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BACKGROUND: Currently, there are no nutritional indices to predict cognitive function in extremely low-birth-weight (ELBW) infants. OBJECTIVE: To assess the neonatal blood urea nitrogen (BUN) values in ELBW infants according to their cognitive function at the corrected age of 36 months. METHODS: This was a retrospective study that assessed the neonatal factors affecting the developmental outcome in two groups "developmental quotient (DQ)> or =80" and "DQ<80", the groups were divided based on the DQ at the corrected age of 36 months. Between 1996 and 1999, 178 ELBW infants born at <28 weeks of gestation were admitted to our neonatal intensive care unit (NICU), of these, 32 died. Of the surviving 146 infants, 37 infants without any exclusion criteria (that would affect the cognitive function and BUN) except the nutritional factor, were assessed. Area under the curve (AUC) of corrected BUN (CBUN: BUN x 0.5/serum creatinine) from 28 to 84 days of life was used as an index of protein intake. RESULTS: No significant differences were observed between the two groups with regard to the gestational age, birth weight, Z score of birth weight, and sex. However, compared to 15 infants with DQ<80, 22 infants with DQ> or =80 had significantly shorter duration of artificial ventilation and O(2) supplementation, a higher Apgar score at 5 min, and a higher AUC of CBUN. On multiple regression analysis, DQ> or =80 was observed to be significantly correlated with the AUC of CBUN (Odd's ratio 1.03, 95% confidence interval: 1.002-1.06). CONCLUSION: The CBUN level would provide an estimate of adequate protein intake and the subsequent development of an ELBW infant.

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2007&ichushi_jid=J01348&link_issn=&doc_id=20070418110006&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F781&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F781&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(財)小児愛育協会  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2006&ichushi_jid=J01547&link_issn=&doc_id=20070406190009&doc_link_id=%2Fda3risyo%2F2006%2F005405%2F009%2F0133-0135%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fda3risyo%2F2006%2F005405%2F009%2F0133-0135%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(一社)日本周産期・新生児医学会  

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Language：Japanese   Publisher：近畿新生児研究会  

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Language：Japanese   Publisher：(公社)日本小児科学会  

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Language：Japanese   Publisher：(地独)大阪府立病院機構大阪母子医療センター  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(有)医学の世界社  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2004&ichushi_jid=J01348&link_issn=&doc_id=20050119360027&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F585&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F585&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

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Language：Japanese   Publisher：(公社)日本新生児成育医学会  

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Language：Japanese   Publisher：(公社)日本小児科学会  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：(公社)日本小児科学会  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：金原出版(株)  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1998&ichushi_jid=J00639&link_issn=&doc_id=19980626090010&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2043&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2043&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：(株)総合医学社  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1998&ichushi_jid=J00643&link_issn=&doc_id=19980609270007&doc_link_id=%2Fag1snrsd%2F1998%2F005106%2F008%2F1091-1095%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fag1snrsd%2F1998%2F005106%2F008%2F1091-1095%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：旭川厚生病院  

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1997&ichushi_jid=J02713&link_issn=&doc_id=19981028280009&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F3577&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F3577&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(財)小児愛育協会  

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1997&ichushi_jid=J01547&link_issn=&doc_id=19980610160008&doc_link_id=%2Fda3risyo%2F1997%2F004506%2F008%2F0283-0286%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fda3risyo%2F1997%2F004506%2F008%2F0283-0286%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(一社)日本周産期・新生児医学会  

CiNii Books

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1997&ichushi_jid=J01125&link_issn=&doc_id=19971111190002&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2069&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2069&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：日本小児臨床薬理学会  

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Language：Japanese  

CiNii Books

CiNii Research

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese  

CiNii Books

CiNii Research

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Language：Japanese   Publisher：(NPO)日本小児がん学会  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：(一社)日本小児栄養消化器肝臓学会  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：旭川厚生病院  

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1996&ichushi_jid=J02713&link_issn=&doc_id=19970910300006&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F3578&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F3578&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：(財)小児愛育協会  

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Language：Japanese   Publisher：旭川厚生病院  

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Language：Japanese   Publisher：(一社)日本周産期・新生児医学会  

CiNii Books

CiNii Research

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：(財)小児愛育協会  

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1995&ichushi_jid=J01547&link_issn=&doc_id=19951115090006&doc_link_id=%2Fda3risyo%2F1995%2F004304%2F006%2F0197-0200%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fda3risyo%2F1995%2F004304%2F006%2F0197-0200%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(公社)日本小児科学会  

CiNii Books

CiNii Research

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Other Link： https://ndlsearch.ndl.go.jp/books/R000000004-I032342833

Language：Japanese   Publisher：(公社)日本小児科学会  

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Language：Japanese   Publisher：(公社)日本小児科学会  

CiNii Books

CiNii Research

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Language：Japanese  

CiNii Books

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2018&ichushi_jid=J02827&link_issn=&doc_id=20180703190001&doc_link_id=%2Fao7nroci%2F2018%2F003107%2F003%2F0630-0632%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fao7nroci%2F2018%2F003107%2F003%2F0630-0632%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(一社)日本母乳の会  

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Language：Japanese   Publisher：(株)診断と治療社  

CiNii Books

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2018&ichushi_jid=J00642&link_issn=&doc_id=20180220190011&doc_link_id=%2Fae4shond%2F2018%2F008103%2F012%2F0351-0354%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fae4shond%2F2018%2F008103%2F012%2F0351-0354%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)メディカ出版  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2017&ichushi_jid=J02827&link_issn=&doc_id=20171002150001&doc_link_id=%2Fao7nroci%2F2017%2F003010%2F003%2F0894-0897%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fao7nroci%2F2017%2F003010%2F003%2F0894-0897%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

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Language：Japanese   Publisher：日本酪農科学会  

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Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2015&ichushi_jid=J00621&link_issn=&doc_id=20150727180025&doc_link_id=%2Faq9syuse%2F2015%2F004507%2F025%2F0960-0964%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2015%2F004507%2F025%2F0960-0964%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2012&ichushi_jid=J00621&link_issn=&doc_id=20121218160003&doc_link_id=%2Faq9syuse%2F2012%2F004212%2F003%2F1537-1539%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2012%2F004212%2F003%2F1537-1539%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)メディカ出版  

CiNii Books

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2012&ichushi_jid=J02827&link_issn=&doc_id=20120305210006&doc_link_id=issn%3D2434-4540%26volume%3D25%26issue%3D3%26spage%3D252&url=http%3A%2F%2Fwww.pieronline.jp%2Fopenurl%3Fissn%3D2434-4540%26volume%3D25%26issue%3D3%26spage%3D252&type=PierOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00005_2.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2011&ichushi_jid=J00621&link_issn=&doc_id=20110317150002&doc_link_id=%2Faq9syuse%2F2011%2F004103%2F003%2F0309-0311%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2011%2F004103%2F003%2F0309-0311%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)メディカ出版  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2010&ichushi_jid=J02827&link_issn=&doc_id=20100803080005&doc_link_id=%2Fao7nroci%2F2010%2F002308%2F006%2F0804-0808%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fao7nroci%2F2010%2F002308%2F006%2F0804-0808%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2010&ichushi_jid=J00621&link_issn=&doc_id=20100714280048&doc_link_id=%2Faq9syuse%2F2010%2F004006%2F048%2F0942-0946%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2010%2F004006%2F048%2F0942-0946%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2010&ichushi_jid=J00621&link_issn=&doc_id=20100301170023&doc_link_id=%2Faq9syuse%2F2010%2F004002%2F023%2F0259-0261%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2010%2F004002%2F023%2F0259-0261%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)メディカ出版  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2009&ichushi_jid=J02827&link_issn=&doc_id=20090701150004&doc_link_id=%2Fao7nroci%2F2009%2F002207%2F005%2F0666-0671%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fao7nroci%2F2009%2F002207%2F005%2F0666-0671%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：English   Publishing type：Research paper, summary (international conference)  

Web of Science

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Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2008&ichushi_jid=J00621&link_issn=&doc_id=20081218100019&doc_link_id=%2Faq9syuse%2F2008%2F003812%2F019%2F1601-1605%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2008%2F003812%2F019%2F1601-1605%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2008&ichushi_jid=J00621&link_issn=&doc_id=20081023110026&doc_link_id=%2Faq9syuse%2F2008%2F003810%2F026%2F1325-1328%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faq9syuse%2F2008%2F003810%2F026%2F1325-1328%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(一社)日本周産期・新生児医学会  

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Language：Japanese  

CiNii Books

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2002&ichushi_jid=J00639&link_issn=&doc_id=20021119310027&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2044&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2044&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：(株)東京医学社  

CiNii Research

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2001&ichushi_jid=J00621&link_issn=&doc_id=20011226530171&doc_link_id=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2068&url=https%3A%2F%2Fasahikawa-med.repo.nii.ac.jp%2Frecords%2F2068&type=%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%97%AD%E5%B7%9D%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%E5%AD%A6%E8%A1%93%E6%88%90%E6%9E%9C%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA_AMCoR&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80003_3.gif

Language：Japanese   Publisher：(公社)日本新生児成育医学会  

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Other Link： https://search.jamas.or.jp/default/link?pub_year=1999&ichushi_jid=J02568&link_issn=&doc_id=19990302450017&doc_link_id=%2Fcr5newbo%2F1999%2F001101%2F017%2F0105-0106%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcr5newbo%2F1999%2F001101%2F017%2F0105-0106%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif