[1] Shanghai Chest Hosp, Clin Med Ctr Lung Tumor, Dept Pulm Oncol, Shanghai, Peoples R China
[2] Sun Yat Sen Univ, Dept Oncol, Ctr Canc, Guangzhou, Guangdong, Peoples R China
[3] Tongji Hosp, Dept Oncol, Shanghai, Peoples R China
[4] Sir Run Run Shaw Hosp, Dept Oncol, Hangzhou, Zhejiang, Peoples R China
[5] Hosp Grosshansdorf, Dept Thorac Oncol, Grosshansdorf, Germany