1. School of Nursing, The Hong Kong Polytechnic University, Kowloon, Hong Kong
2. Department of Medicine, Queen Elizabeth Hospital, Hong Kong
3. Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong
4. Department of Surgery, Queen Elizabeth Hospital, Hong Kong
5. Department of Medicine, Tseng Kwan O Hospital, Hong Kong
6. Department of Medicine, Tuen Mum Hospital, Hong Kong