[1] Henan Univ Chinese Med, Clin Med Sch 1, Zhengzhou, Peoples R China
[2] Ctr Dis Control & Prevent Henan Prov, Ctr AIDS STD Control & Prevent, Zhengzhou, Peoples R China
[3] Henan Univ Chinese Med, Affiliated Hosp 1, Dept Acquired Immune Deficiency Syndrome Treatment, Zhengzhou, Peoples R China
[4] Henan Univ Chinese Med, Res Ctr, Affiliated Hosp 1, Zhengzhou, Peoples R China
[5] Henan Univ Chinese Med, Henan Key Lab Viral Dis Prevent & Treatment Tradit, Zhengzhou, Peoples R China