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