1. Department of Psychiatry; Taipei Veterans General Hospital; Taipei Taiwan
2. Department of Neurology; Taipei Veterans General Hospital; Taipei Taiwan
3. Center for Geriatrics and Gerontology; Taipei Veterans General Hospital; Taipei Taiwan
4. Division of Psychiatry; School of Medicine; National Yang-Ming University; Taipei Taiwan
5. School of Traditional Chinese Medicine; Chang Gung University; Taoyuan Taiwan
6. Research Center for Industry of Human Ecology; Chang Gung University of Science and Technology; Taoyuan Taiwan
7. Division of Hepatology; Department of Gastroenterology and Hepatology; Liver Research Center; Chang Gung Memorial Hospital; Taoyuan Taiwan
8. Department of Family Medicine; Taipei Veterans General Hospital; Taipei Taiwan
9. Institute of Hospital and Health Care Administration; National Yang-Ming University; Taipei Taiwan