Affiliation: | (1) Department of Medicine (Family Medicine Unit), The University of Hong Kong, 3/F, 161 Main Street, Ap Lei Chau Clinic, Ap Lei Chau, Hong Kong;(2) Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong;(3) Department of Nursing Studies, The University of Hong Kong, 4/F, William MW Mong Block, Faculty of Medicine Building, 21 Sassoon Road, Hong Kong;(4) Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong |