1. Department of Infectious Diseases, Shanghai Public Health Clinical Center, China
2. Chronic Viral Illness Service, McGill University Health Centre, Montreal, Quebec, Canada
3. Research Institute, McGill University Health Centre, Montreal, Quebec, Canada
4. Division of Hematology, McGill University Health Centre, Montreal, Quebec, Canada
5. Department of Internal Medicine, Shanghai Medical College, Fudan University
6. Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai, China