1. Department of Pediatrics, Itoigawa General Hospital, Niigata, Japan
2. Department of Pediatrics, Toyama University Hospital, Toyama, Japan
3. Department of Pediatrics, Toyama City Hospital, Toyama, Japan
4. Department of Pediatrics, Hida Municipal Hospital, Gifu, Japan
5. Nakamura Children’s Clinic, Niigata, Japan
6. Division of Pediatric Endocrinology and Metabolism, Children’s Medical Center, Osaka City General Hospital, Osaka, Japan