[1] Sichuan Univ, W China Hosp, Phys Examinat Ctr, Chengdu 610041, Sichuan Prov, Peoples R China
[2] Sichuan Univ, W China Hosp, Ctr Infect Dis, Chengdu 610041, Sichuan Prov, Peoples R China
[3] Sichuan Univ, State Key Lab Biotherapy, Div Mol Biol Infect Dis, Chengdu 610041, Sichuan Prov, Peoples R China
[4] Wusheng Peoples Hosp, Dept Internal Med 1, Guangan 638400, Sichuan Prov, Peoples R China