[1] Mem Sloan Kettering Canc Ctr, Gastrointestinal Oncol Serv, New York, NY USA
[2] Krankenhaus NW Frankfurt, Inst Clin Canc Res, Univ Canc Ctr, Frankfurt, Germany
[3] Univ Calif Los Angeles, David Geffen Sch Med, Dept Gastrointestinal Med Oncol, Los Angeles, CA USA
[4] Univ Hosp Leuven, Dept Gastroenterol Digest Oncol, Leuven, Belgium
[5] Katholieke Univ Leuven, Leuven, Belgium
[6] Mem Sloan Kettering Canc Ctr, Div Thorac Surg, New York, NY USA
[7] Aichi Canc Ctr Hosp, Dept Clin Oncol, Nagoya, Aichi, Japan
[8] Yonsei Univ, Dept Surg, Coll Med, Seoul, South Korea
[9] Maria Sklodowska Curie Natl Res Inst Oncol, Dept Radiotherapy & Oncol, Warsaw, Poland
[10] Seoul Natl Univ Hosp, Div Med Oncol, Dept Internal Med, Seoul, South Korea
[11] Seoul Natl Univ, Canc Res Inst, Coll Med, Seoul, South Korea
[12] Osaka Int Canc Inst, Dept Gastroenterol Surg, Osaka, Japan
[13] Johannes Gutenberg Univ Clin, Res Ctr Immunotherapy FZI, Mainz, Germany
[14] Clin Trial Ctr, London, England
[15] Univ Mayor, Santiago, Chile
[16] Clin Res Ctr, Northern Riograndense League Canc, Clin Oncol, Rio De Janeiro, Brazil
[17] Ctr Rech CHUM, Ctr Hosp Univ Montreal, Div Thorac Surg, Dept Surg, Montreal, PQ, Canada
[18] Natl Inst Neoplast Dis INEN & Detecta Clin, Lima, Peru
[19] Ataturk Univ, Fac Med, Dept Med Oncol, Erzurum, Turkiye
[20] AstraZeneca, Cambridge, England
[21] UVic UCC, Vall Hebron Hosp Campus & Inst Oncol VHIO, Med Oncol Dept, IOB Quiron, Barcelona, Spain