1. Department of Molecular Endocrinology, National Research Institute for Child Health and Development , Tokyo 157-8535 , Japan
2. Department of Pediatrics, Keio University School of Medicine , Tokyo 160 - 8582 , Japan
3. Department of Pediatrics, Hokkaido University Graduate School of Medicine , Sapporo 060-8648 , Japan
4. Department of Endocrinology and Metabolism, Shizuoka Children’s Hospital , Shizuoka 420-8660 , Japan
5. Medical Genetics Center, National Hospital Organization Tokyo Medical Center , Tokyo 152-8902 , Japan
6. Department of Biochemistry, Hamamatsu University School of Medicine , Hamamatsu 431-3192 , Japan
7. Department of Pediatrics, Hamamatsu Medical Center , Hamamatsu 432-8580 , Japan