1. Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan
2. Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
3. Division of Pediatric Endocrinology and Metabolism, Children’s Medical Center, Osaka City General Hospital, Osaka, Japan
4. Department of Pediatrics, Toho University Omori Medical Center, Tokyo, Japan
5. Division of Pediatrics, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan
6. Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
7. Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan.
8. Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
9. Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan