1. Department of Pediatrics Tokyo Women’s Medical University Medical Center East Tokyo Japan
2. Department of Pediatric Endocrinology and Metabolism Shikoku Medical Center for Children and Adults Kagawa Japan
3. Department of Pediatrics Asahikawa‐Kosei General Hospital Asahikawa Japan
4. Department of Pediatrics Osaka Police Hospital Osaka Japan
5. Mominoki Hospital Kochi Japan
6. Department of Pediatrics Tokyo Women's Medical University Hospital Tokyo Japan
7. Department of Pediatrics Kyushu Rousai Hospital Kitakyushu Japan
8. Department of Pediatrics Teikyo University Chiba Medical Center Chiba Japan
9. Department of Pediatrics Yokohama City Minato Red Cross Hospital Yokohama Japan
10. Department of Pediatrics Nihon University School of Medicine Tokyo Japan
11. Department of Pediatrics Osaka City University School of Medicine Osaka Japan
12. Department of Diabetes and Endocrinology Shin‐Koga Hospital Kurume Japan
13. Department of Pediatrics Saitama Medical University Iruma Saitama Japan