1. Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
2. Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
3. Division of Pediatric Endocrinology and Metabolism, Children’s Medical Center, Osaka City General Hospital, Osaka, Japan
4. 2nd Department of Internal Medicine, Date Red Cross Hospital, Hokkaido, Japan
5. Department of Pediatrics, Tama-Hokubu Medical Center, Tokyo, Japan