[1] Sichuan Univ, West China Hosp, Canc Ctr, Dept Med Oncol, Chengdu, Peoples R China
[2] Sichuan Univ, Shangjin Nanfu Hosp, West China Hosp, Dept Med Oncol, Chengdu, Peoples R China
[3] Southwest Med Univ, Affiliated Chengdu Hosp 363, Dept Oncol, Chengdu, Peoples R China
[4] Sichuan Univ, West China Hosp, Canc Ctr, Div Thorac Tumor Multimodal Treatment, Chengdu 610041, Peoples R China
[5] Sichuan Univ, West China Hosp, Canc Ctr, Dept Med Oncol, Chengdu 610041, Peoples R China