[1] Nanfang Hosp, Gen Surg, Guangzhou, Guangdong, Peoples R China
[2] Southern Med Univ, Nanfang Hosp, Gen Surg, Guangzhou, Guangdong, Peoples R China
[3] Peking Univ Canc Hosp, Minimally Invas Gastrointestinal Surg, Beijing, Peoples R China
[4] Fudan Univ, Zhongshan Hosp, Gen Surg, Shanghai, Peoples R China
[5] Sichuan Univ, West China Hosp, Gen Surg, Chengdu, Sichuan, Peoples R China
[6] Fujian Prov Hosp, Gastrointestinal Surg, Fuzhou, Fujian, Peoples R China
[7] Sun Yat Sen Univ, Canc Ctr, Gastrointestinal Surg, Guangzhou, Guangdong, Peoples R China
[8] Guangdong Gen Hosp, Gen Surg, Guangzhou, Guangdong, Peoples R China
[9] Southern Med Univ, Gen Surg, Zhujiang Hosp, Guangzhou, Guangdong, Peoples R China
[10] Sun Yat Sen Univ, Affiliated Hosp 3, Gen Surg, Guangzhou, Guangdong, Peoples R China
[11] Sun Yat Sen Univ, Affiliated Hosp 6, Colorectal & Annal Surg, Guangzhou, Guangdong, Peoples R China
[12] Meizhou Peoples Hosp, Gen Surg, Meizhou, Peoples R China
[13] Zhongshan City People Hosp, Gen Surg, Zhongshan, Peoples R China
[14] Guangzhou Med Univ, Canc Ctr, Abdominal Surg, Guangzhou, Guangdong, Peoples R China