1. Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
2. Department of Pediatrics, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
3. Department of Pediatrics, Tokyo Saiseikai Central Hospital, Tokyo, Japan
4. Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
5. Department of Endocrinology and Metabolism, Tokyo Metropolitan Children`s Medical Center, Tokyo, Japan
6. Department of Pediatrics, Shinshu University School of Medicine, Nagano, Japan
7. Department of Pediatrics, Japanese Red Cross Shizuoka Hospital, Shizuoka, Japan
8. Department of Obstetrics and Gynecology, Japanese Red Cross Shizuoka Hospital, Shizuoka, Japan
9. Department of Obstetrics and Gynecology, Nagahama City Hospital, Shiga, Japan
10. Department of Obstetrics and Gynecology, Tenri Hospital, Nara, Japan
11. Department of Pediatrics, Shizuoka City Shimizu Hospital, Shizuoka, Japan