1. Department of Diabetes and Molecular Genetics (W.N., R.K., H.On., H.Os., H.M.), Ehime University Graduate School of Medicine, To-on, Ehime 791-0295, Japan
2. Department of Internal Medicine (M.N.), Kokogawa W City Hospital, Hyogo 675-8611, Japan
3. Department of Metabolic Medicine (A.I.), Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
4. Department of Internal Medicine (I) (T.H.), Osaka Medical College, Osaka 569-8686, Japan
5. University of Tsukuba (J.O.), Ibaraki, Japan
6. 6) Division of Diabetes (K.T.), Department of Internal Medicine, Kurashiki Central Hospital, Kurashiki 710-8602, Japan
7. Department of Diabetes (T.S.), Kochi Takasu Hospital, Kochi 781-5103, Japan
8. Sumitomo Hospital (Y.Y.), Osaka 530-0005, Japan
9. Diabetes Research Center (D.C.), National Center for Global Health and Medicine, Tokyo 162-8655, Japan
10. Department of Metabolism/Diabetes and Clinical Nutrition (E.K.), Nagasaki University Hospital, Nagasaki 852-8501, Japan
11. Shiraishi Hospital Diabetes Center (H.M.), Imabari, Ehime 794-0041, Japan