1. Department of Diabetes, Metabolism and EndocrinologyChiba University Hospital Chiba Japan
2. Department of Endocrinology, Hematology and GerontologyChiba University Graduate School of Medicine Chiba Japan
3. Division of Diabetes, Endocrinology and MetabolismKimitsu Chuo Hospital Chiba Japan
4. Department of Internal Medicine, Hotaruno Central Naika Chiba Japan
5. Department of Internal Medicine, Odayama Clinic Chiba Japan
6. Department of Diabetes and MetabolismJapanese Red Cross Narita Hospital Chiba Japan
7. Department of Diabetes and MetabolismAsahi General Hospital Chiba Japan
8. Department of Diabetes, Endocrine and Metabolic DiseasesTokyo Women's Medical University Yachiyo Medical Center Chiba Japan
9. Department of Internal Medicine, Yukarigaoka Tokuyama Medical Clinic Chiba Japan
10. Department of Diabetes and MetabolismNational Hospital Organization Chiba Medical Center Chiba Japan
11. Geriatric Medical CenterChiba University Hospital Chiba Japan
12. Diagnostic Radiology and Radiation OncologyChiba University Graduate School of Medicine Chiba Japan
13. Department of RadiologySannou Hospital Chiba Japan
14. Clinical Research CenterChiba University Hospital Chiba Japan
15. Department of Global Clinical ResearchChiba University, Graduate School of Medicine Chiba Japan
16. Department of Diabetes, Metabolism and Endocrinology, School of Medicine, International University of Health and Welfare, Chiba, Japan
17. Duke Clinical Research InstituteDuke University Medical Center Durham North Carolina