1. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China (SAR);
2. School of Nursing and Health Studies, Hong Kong Metropolitan University, Hong Kong, China (SAR);
3. Department of Physiotherapy, Shatin Hospital, Hong Kong, China (SAR);
4. Department of Medicine, Tseung Kwan O Hospital, Hong Kong, China (SAR);
5. Department of Medicine and Geriatrics, Shatin Hospital, Hong Kong, China (SAR);
6. Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China (SAR)