[1] Beijing Canc Hosp, Beijing, Peoples R China
[2] Shanghai Jiao Tong Univ, Affiliated Peoples Hosp 6, Shanghai, Peoples R China
[3] Canc Hosp, Dept Abdominal Surg, CAMS, Beijing, Peoples R China
[4] Chinese Acad Med Sci & Peking Union Med Coll, Natl Canc Ctr, Natl Clin Res Ctr Canc, Canc Hosp, Beijing, Peoples R China
[5] Sun Yat Sen Univ, Canc Ctr, Guangzhou, Peoples R China
[6] Hunan Canc Hosp, Changsha, Peoples R China
[7] Henan Canc Hosp, Zhengzhou, Peoples R China
[8] Liaoning Canc Hosp & Inst, Shenyang, Peoples R China
[9] Tianjin Med Univ Canc Inst & Hosp, Tianjin, Peoples R China
[10] Harbin Med Univ, Canc Hosp, Harbin, Peoples R China
[11] Bengbu Med Coll, Affiliated Hosp 1, Bengbu, Peoples R China
[12] Sichuan Univ, West China Hosp, Chengdu, Sichuan, Peoples R China
[13] Gansu Prov Canc Hosp, Lanzhou, Peoples R China
[14] Huazhong Univ Sci & Technol, Tongji Med Coll, Union Hosp, Wuhan, Peoples R China
[15] Shanghai Jiao Tong Univ, Peoples Hosp 1, Shanghai, Peoples R China
[16] Fujian Med Univ, Affiliated Hosp 1, Fuzhou, Peoples R China
[17] Peking Union Med Coll Hosp, Beijing, Peoples R China
[18] Guangxi Med Univ, Affiliated Tumor Hosp, Nanning, Peoples R China
[19] Jiangxi Canc Hosp, Nanchang, Jiangxi, Peoples R China
[20] Sun Yat Sen Univ, Affiliated Hosp 1, Guangzhou, Peoples R China