1. School of Public Health, Guangxi Medical University, Nanning, China.
2. Guangxi Key Laboratory Cultivation Base of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, China.
3. Section of Retroviral Therapeutics, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts.
4. Department of Medicine (MISU), Boston Medical Center, Boston, Massachusetts.
5. The First Affiliated Hospital, Chongqing Medical University, Chongqing, China.
6. School of Public Health, Xinjiang Medical University, Xinjiang, China.
7. School of Public Health, Chongqing Medical University, Chongqing, China.
8. National Center for STD Control, Chinese Center for Disease Control and Prevention, Nanjing, China.
9. State Key Laboratory for Infectious Disease Prevention and Control, and National Center for AIDS/STD Control and Prevention (NCAIDS), Chinese Center for Disease Control and Prevention, Beijing, China.