[1] Sun Yat Sen Univ, State Key Lab Oncol South China, Dept Thorac Oncol, Ctr Canc,Collaborat Innovat Ctr Canc Med, Guangzhou 510060, Guangdong, Peoples R China
[2] Guangdong Esophageal Canc Inst, Guangzhou, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Publ Hlth, Guangzhou 510060, Guangdong, Peoples R China