1. Department of Endocrinology and Metabolism, Kanagawa Children’s Medical Center, Yokohama 232-8555, Japan
2. Neonatal Mass-screening Committee, Kanagawa Prefecture Medical Association, Yokohama 231-0037, Japan
3. Kanagawa Health Service Association, Yokohama 236-8530, Japan
4. Department of Obstetrics and Gynecology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan