1. Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, People’s Republic of China
2. Life Sciences Institute, Guangxi Medical University, Nanning, People’s Republic of China
3. Liuzhou People’s Hospital, Liuzhou, People’s Republic of China
4. School of Public Health, Guangxi Medical University, Nanning, People’s Republic of China
5. Nursing College, Guangxi Medical University, Nanning, People’s Republic of China