1. Center for Preventive Medical Sciences, Chiba University
2. Department of Pediatrics, Osaka University Graduate School of Medicine
3. Division of Endocrinology, Chiba Children’s Hospital
4. Third Department of Medicine, Teikyo University Chiba Medical Center
5. Department of Molecular Endocrinology, Fujii Memorial Institute of Medical Sciences, Institute of Advanced Medical Sciences, Tokushima University
6. Division of Public Health, Center for Community Medicine, Jichi Medical University