1. Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China; Gleneagles Hospital Hong Kong, Hong Kong SAR, China
2. Specialist in Infectious Diseases, HKSH Medical Group, Hong Kong SAR, China
3. Hong Kong Chinese Medical Association, Hong Kong SAR, China
4. The Hong Kong Geriatrics Society, Hong Kong SAR, China
5. Mount Elizabeth Hospital, Singapore; National University of Singapore, Singapore
6. Premier Medical Centre, Hong Kong SAR, China
7. JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Editor-in-Chief, Hong Kong Medical Journal