[1] Sichuan Univ, West China Hosp, Canc Ctr, Dept Abdominal Oncol, Chengdu 610000, Peoples R China
[2] Sichuan Univ, West China Hosp, Lab Mol Targeted Therapy Oncol, Chengdu 610000, Peoples R China
[3] Sichuan Univ, West China Hosp, Lab Mol Targeted Therapy Oncol, Chengdu 610000, Peoples R China
[4] Sichuan Univ, West China Hosp, Dept Gastroenterol, Chengdu 610000, Peoples R China
[5] Sichuan Univ, West China Sch Med, Chengdu 610000, Peoples R China