1. J Cheng (corresponding author): S.H. Ho Centre for Gerontology and Geriatrics and Department of Medicine and Therapeutics, Chinese University of Hong Kong, Cadenza, Room 104, Meng Wah Complex, Pokfulam, Hong Kong;
2. R Lo: Palliative Care Unit and Department of Medicine and Geriatrics, Shatin Hospital, Ma On Shan, New Territories, Hong Kong;
3. Bradbury Hospice, New Territories, Hong Kong;
4. F Chan: Society for the Promotion of Hospice Care, Shau Kei Wan, Hong Kong;
5. J Woo: Department of Medicine and Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Shatin, Hong Kong