[1] Natl Canc Ctr Hosp East, Dept Gastroenterol & Gastrointestinal Oncol, Kashiwa, Chiba, Japan
[2] Mem Sloan Kettering Canc Ctr, Gastrointestinal Oncol Serv, 1275 York Ave, New York, NY 10021 USA
[3] Princess Margaret Canc Ctr, Dept Med Oncol & Hematol, Toronto, ON, Canada
[4] Shanghai Jiao Tong Univ, Sch Med, Rui Jin Hosp, Dept Oncol, Shanghai, Peoples R China
[5] Taipei Vet Gen Hosp, Dept Oncol, Taipei, Taiwan
[6] Oxford Univ Hosp NHS Fdn Trust, Dept Oncol, Oxford, England
[7] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Div Hematol Oncol,Dept Med, Seoul, South Korea
[8] AstraZeneca, R&D China, Shanghai, Peoples R China
[9] AstraZeneca, Oncol R&D, Late Stage Dev, Gaithersburg, MD USA
[10] Sun Yat Sen Univ, Guangdong Prov Clin Res Ctr Canc, State Key Lab Oncol South China, Dept Med Oncol,Canc Ctr, Guangzhou, Peoples R China