[1] Guangzhou Med Univ, Affiliated Hosp 1, Guangzhou Inst Resp Dis, State Key Lab Resp Dis, Guangzhou 510120, Guangdong, Peoples R China
[2] Guangzhou Univ CM, Guangdong Prov Acad Chinese Med Sci, Guangdong Prov Hosp Chinese Med, Clin Coll 2, Guangzhou 510120, Guangdong, Peoples R China
[3] S China Normal Univ, Guangzhou 510631, Guangdong, Peoples R China