1. Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Japan
2. Diabetes Center, National Hospital Organization Osaka National Hospital, Japan
3. Department of Diabetes and Endocrinology, National Hospital Organization National Mie Hospital, Japan
4. Department of Diabetes and Metabolism, National Hospital Organization Hyogo-Chuo National Hospital, Japan
5. Department of Diabetes and Endocrinology, National Hospital Organization Himeji Medical Center, Japan
6. Department of Diabetes, Endocrinology and Metabolism, National Hospital Organization Kokura Medical Center, Japan
7. Department of Diabetology and Metabolism, National Hospital Organization Okayama Medical Center, Japan
8. Department of Clinical Nutrition, National Hospital Organization Kyoto Medical Center, and Diabetes Center, National Hospital Organization Kyoto Medical Center, Japan
9. Department of Nursing, Chang Gung University of Science and Technology, Taiwan