1. School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China SAR
2. School of Public Health, Department of Community Medicine, The University of Hong Kong, Hong Kong, China SAR
3. Department of Medicine & Geriatrics, United Christian Hospital, Hong Kong, China SAR
4. Department of Medicine, Haven of Hope Hospital, Hong Kong, China SAR
5. Palliative Medical Unit, Grantham Hospital, Hong Kong, China SAR