Affiliation: | 1. Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand;2. Division of Neurology, Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand;3. Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine and Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, Khon Kaen, Thailand;4. Department of Medicine, Faculty of Medicine, and Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH) Khon Kaen University, Khon Kaen, Thailand |