1. Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR
2. Medical College of Northwest Minzu University, Lanzhou, Gansu, China
3. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University
4. School of Health and Related Research, The University of Sheffield, Sheffield, South Yorkshire, United Kingdom
5. Shanghai Normal University Tianhua College
6. Department of Rehabilitation Medicine, Shanghai Xuhui Central Hospital, Shanghai, China