1. Yunnan Provincial Hospital of Infectious Disease, AIDS Care Center (YNACC), Kunming, China.
2. Department of AIDS Research, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China.
3. First People's Hospital of Yunnan Province, Kunming University of Science and Technology Affiliated Kun Hua Hospital, Kunming, China.