1. Departments of Laboratory Medicine (K.H.) Tokyo 160-8582, Japan
2. Pediatrics (T.H.), Keio University School of Medicine, Tokyo 160-8582, Japan
3. Department of Pediatrics, Dokkyo University School of Medicine Koshigaya Hospital (T.N.), Koshigaya 343-8555, Japan
4. Division of Endocrinology and Metabolism, Kanagawa Children’s Medical Center (M.A.), Yokohama 232-8555, Japan
5. Division of Endocrinology and Metabolism, National Center for Child Health and Development (R.H.), Tokyo 157-8535, Japan
6. Department of Pediatrics, Tohoku University School of Medicine (I.F.), Sendai 980-0878, Japan
7. Department of Pediatrics, Hokkaido University School of Medicine (T.T.) Sapporo 060-8638, Japan
8. Department of Pediatrics, Shirakawa Kousei General Hospital (R.T.), Shirakawa 961-0907, Japan
9. Department of Endocrinology and Metabolism, National Research Institute for Child Health and Development (M.F., T.O.), Tokyo 157-8535, Japan