[1] Sun Yat Sen Univ, Ctr Canc, Colorectal, Guangzhou, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Affiliated Hosp 1, Gastrointestinal Pancreat Surg, Guangzhou, Guangdong, Peoples R China
[3] Kunming Med Coll, Affiliated Hosp 3, Yunnan Tumour Hosp, Yunnan Canc Hosp, Kunming, Peoples R China
[4] Sichuan Univ, West China Hosp, Oncol, Chengdu, Peoples R China
[5] Jilin Univ, Bethune Hosp 1, Hematol Oncol, Changchun, Peoples R China
[6] Fujian Prov Hosp, Surg Oncol, Fuzhou, Peoples R China
[7] Nanjing Med Univ, Biol Stat, Nanjing, Jiangsu, Peoples R China
[8] Shanghai Chest Hosp, Cardiol, Shanghai, Peoples R China
[9] Hebei Canc Hosp, Surg Oncol, Shijiazhuang, Peoples R China
[10] 3rd Mil Med Univ, Xinqiao Hosp, Oncol, Chongqing, Peoples R China
[11] Shanghai Jiao Tong Univ, Coll Med, Shanghai Ruijin Hosp, Oncol, Shanghai, Peoples R China
[12] Kunming Med Univ, Affiliated Hosp 1, Oncol, Kunming, Peoples R China
[13] Sun Yat Sen Univ, Ctr Canc, Internal Med, Guangzhou, Guangdong, Peoples R China
[14] Bengbu Med Coll, Affiliated Hosp 1, Med Oncol, Bengbu, Peoples R China
[15] Zhejiang Univ, Univ Sch Med, Affiliated Hosp 2, Med Oncol, Hangzhou, Zhejiang, Peoples R China