[1] Guangzhou Med Univ, Affiliated Hosp 1, Dept Thorac Surg, 151 Yanjiang Rd, Guangzhou 510120, Guangdong, Peoples R China
[2] Guangzhou Res Inst Resp Dis, China State Key Lab Resp Dis, Guangzhou 510120, Guangdong, Peoples R China
[3] Natl Ctr Clin Trials Resp Dis, Guangzhou 510120, Guangdong, Peoples R China
[4] Guangzhou Med Univ, Dept Anesthesiol, Affiliated Hosp 1, Guangzhou 510120, Guangdong, Peoples R China