1. Rinku General Medical Center Izumisano Osaka Japan
2. Diabetes Center, Ebina General Hospital Ebina Kanagawa Japan
3. Department of Endocrinology and Metabolism, Institute of Medicine University of Tsukuba Tsukuba Japan
4. Department of Internal Medicine Teikyo University School of Medicine Tokyo Japan
5. Department of Medical Genetics Tokyo Medical and Dental University Tokyo Japan
6. Department of Life Science and Bioethics, Graduate School of Medicine Tokyo Medical and Dental University Tokyo Japan
7. Section of Internal Medicine of Metabolism and Nutrition The Jikei University Graduate School of Medicine Tokyo Japan
8. Department of General Medicine The Jikei University Kashiwa Hospital Chiba Japan
9. Department of Laboratory Medicine The Jikei University Kashiwa Hospital Chiba Japan