1. Division of Preventive Medicine, Clinical Research Institute National Hospital Organization Kyoto Medical Center Kyoto Japan
2. Division of Diabetes and Endocrinology, The Department of Internal Medicine Kobe University Graduate School of Medicine Hyogo Japan
3. Division of Diabetology and Metabolism, Department of Internal Medicine Tokyo Women's Medical University School of Medicine Tokyo Japan
4. Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine Tokai University School of Medicine Isehara Japan
5. Division of Diabetes and Lipid Metabolism National Cerebral and Cardiovascular Center Osaka Japan
6. Department of General Medicine Nara Medical University Nara Japan
7. Department of Internal Medicine Okayama Saiseikai General Hospital Okayama Japan
8. Kanda Naika Clinic Osaka Japan
9. Sawaki Internal Medicine and Diabetes Clinic Osaka Japan
10. Matsuda Diabetes Clinic Kobe Japan
11. Department of Clinical Nutrition National Hospital Organization Kyoto Medical Center Kyoto Japan
12. Diabetes Center National Hospital Organization Kyoto Medical Center Kyoto Japan