1. Department of Health and Physical Education, The Education University of Hong Kong
2. Department of Clinical Psychology, Norwich Medical School, University of East Anglia, UK
3. Department of Anaesthesiology & Operating Services, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong
4. Department of Anaesthesiology & Operating Theatre Services, Queen Elizabeth Hospital, Kowloon, Hong Kong
5. Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
6. Department of Medicine, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong
7. Department of Medicine and Geriatrics, United Christian Hospital, Kowloon, Hong Kong
8. Department of Psychiatry, North District Hospital, Hong Kong