[1] Shanghai Jiao Tong Univ, Shanghai Chest Hosp, Dept Oncol, Shanghai, Peoples R China
[2] Zhejiang Univ, Dept Resp Med, Affiliated Hosp 2, East Gate 1, Hangzhou, Peoples R China
[3] China Med Univ, Dept Oncol, Affiliated Hosp 1, Shenyang, Peoples R China
[4] Zhejiang Univ, Dept Oncol, Affiliated Hosp 2, East Gate 1, Hangzhou, Peoples R China
[5] China Med Univ, Dept Oncol, Affiliated Hosp 1, Shenyang, Peoples R China
[6] Shanghai Jiao Tong Univ, Shanghai Chest Hosp, Sch Med, Dept Med Oncol, Shanghai, Peoples R China