[1] Kanagawa Children’s Medical Center,Department of Neonatology
[2] Nagoya City University Graduate School of Medical Sciences,Center for Human Development and Family Science, Department of Neonatology and Pediatrics
[3] Yokohama City University,Department of Biostatistics, School of Medicine
[4] National Hospital Organization Okayama Medical Center,Division of Neonatology
[5] Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital,Department of Pediatrics
[6] National Center for Child Health and Development,Division of Neonatology, Center for Maternal
[7] University of Tokyo,Fetal Neonatal and Reproductive Medicine
[8] Himeji Red Cross Hospital,Center for Advanced Medical Research, Institute of Medical Science
[9] Yodogawa Christian Hospital,Department of Pediatrics, Perinatal Medical Center
[10] Kurashiki Central Hospital,Department of Pediatrics
[11] Perinatal Medical Center,Department of Pediatrics
[12] Imakiire General Hospital,Department of Neonatology