Department of Neurology, Tainan Sin Lau Hospital , Tainan, Taiwan. School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University , Tainan, Taiwan. Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital , Chiayi City, Taiwan. Department of Information Management and Institute of Healthcare Information Management, National Chung Cheng University , Chiayi County, Taiwan. Departments of Family Medicine and Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Hualien, Taiwan. School of Medicine, Tzu Chi University , Hualien, Taiwan.