1. Department of Medicine; Queen Mary Hospital; Hong Kong China
2. Department of Medicine; Princess Margaret Hospital; Hong Kong China
3. Department of Medicine; United Christian Hospital; Hong Kong China
4. Department of Medicine; Pamela Youde Eastern Hospital; Hong Kong China
5. Department of Medicine; Tuen Mun Hospital; Hong Kong China
6. Department of Medicine; Queen Elizabeth Hospital; Hong Kong China
7. Department of Clinical Oncology; Prince of Wales Hospital; Hong Kong China
8. Department of Pathology; Queen Mary Hospital; Hong Kong China
9. Blood-Med Clinic; Hong Kong China.