[1] Peking Univ, Canc Hosp & Inst, Minist Educ Beijing, Key Lab Carcinogenesis & Translat Res,Dept Gastro, Beijing, Peoples R China
[2] Tianjin Med Univ Canc Inst & Hosp, Tianjin, Peoples R China
[3] Liaoning Canc Hosp, Shenyang, Peoples R China
[4] China Med Univ, Hosp 1, Dept Surg Oncol, Shenyang, Peoples R China
[5] Southern Med Univ, Nanfang Hosp, Dept Gen Surg, Guangzhou, Guangdong, Peoples R China
[6] Southern Med Univ, Nanfang Hosp, Guangdong Prov Key Lab Precis Med Gastrointestina, Guangzhou, Guangdong, Peoples R China
[7] Sichuan Univ, West China Hosp, Dept Gastrointestinal Surg, Chengdu, Peoples R China
[8] Fudan Univ, Zhongshan Hosp, Dept Gen Surg, Shanghai, Peoples R China
[9] Harbin Med Univ, Canc Hosp, Harbin, Peoples R China
[10] Shanghai Roche Pharmaceut Ltd, Shanghai, Peoples R China
[11] Peking Univ, Canc Hosp & Inst, Beijing, Peoples R China
[12] Peking Univ, Canc Hosp & Inst, Dept Gastrointestinal Oncol, Beijing, Peoples R China