[1] Tianjin Med Univ Canc Inst & Hosp, Dept Gastrointestinal Med Oncol, Key Lab Canc Prevent & Therapy, Natl Clin Res Ctr Canc,Tianjins Clin Res Ctr Canc, Tianjin, Peoples R China
[2] Tianjin Med Univ Inst & Hop, Dept Gastroenterol Surg Oncol, Tianjin, Peoples R China
[3] Tianjin Med Univ Inst & Hosp, Natl Clin Res Ctr Canc, Key Lab Canc Prevent & Therapy, Dept Gastroenterol,Tianjins Clin Res Ctr Canc, Tianjin, Peoples R China
[4] Tianjin Med Univ Inst & Hop, Dept Pathol, Tianjin, Peoples R China
[5] Tianjin Med Univ Inst & Hop, Dept Esophageal Canc, Tianjin, Peoples R China
[6] Tianjin Med Univ Inst & Hop, Dept Endoscopy, Tianjin, Peoples R China
[7] Tianjin Med Univ Canc Inst & Hosp, Dept Gastrointestinal Med Oncol, Natl Clin Res Ctr Canc, Key Lab Canc Prevent & Therapy, Tianjin, Peoples R China
[8] Tianjins Clin Res Ctr Canc, Tianjin, Peoples R China
[9] Tianjin Med Univ Canc Inst & Hosp, Dept Gastrointestinal Med Oncol, Key Lab Canc Prevent & Therapy, Tianjins Clin Res Ctr Canc,Natl Clin Res Ctr Canc, Tianjin, Peoples R China