[1] Mahidol University,Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital
[2] Mahidol University,Division of Neurology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital
[3] Mahidol University,Division of Geriatrics, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital
[4] Mahidol University,Section for Clinical Epidemiology and Biostatistics, Faculty of Medicine, Ramathibodi Hospital
[5] Mahidol University,Department of Family Medicine, Faculty of Medicine, Ramathibodi Hospital
[6] University of Illinois at Chicago,Division of Endocrinology, Diabetes and Metabolism, Department of Medicine