1. Endocrinology, Metabolism and Genetics Unit, Tokyo Metropolitan Kiyose Children's Hospital
2. Pharmacia and Upjohn Fund for Growth and Development Research, Keio University School of Medicine
3. Division of Endocrinology and Metabolism, National Children's Hospital
4. Department of Pediatrics, Gunma University School of Medicine
5. Department of Pediatrics, Nagasaki University School of Medicine
6. Department of Pediatrics, Hiroshima Red Cross Hospital
7. Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center
8. Department of Pediatrics, Keio University School of Medicine