Gastrointestinal Cancer Center,Sano Hospital,Hyogo 655-0031,Japan.;
State Key Laboratory of Oncology in South China,Department of Medical Oncology,Collaborative Innovation Center for Cancer Medicine,Sun Yat-sen Univer-sity Cancer Center,Guangzhou,Guangdong 510060,P.R.China.;
Depart-ment of Clinical Oncology,Aichi Cancer Center Hospital,Nagoya 464-8681,Japan.;
Department of Medicine,Samsung Medical Center,Sungkyunkwan University School of Medicine,Seoul 135-710,South Korea.;
Department of Biomedical Statistics and Bioinformatics,Graduate School of Medicine,Kyoto University,Kyoto 606-8501,Japan.;
Gastrointestinal Medical Oncology Division,National Cancer Center Hospital,Tokyo 104-0045,Japan.;
Depart-ment of Surgical Specialties,Graduate School,Tokyo Medical and Dental University,Tokyo 113-8519,Japan.;
Department of Gastrointestinal Medical Oncology,National Hospital Organization Shikoku Cancer Center,Matsuy-ama 791-0280,Japan.;
Department of Surgical Oncology,The University of Tokyo,Tokyo 113-0033,Japan.;
Department of Surgery,Tokyo Metropoli-tan Komagome Hospital,Tokyo 113-8677,Japan.;
Division of Gastrointestinal Oncology,Shizuoka Cancer Center,Shizuoka 411-8777,Japan.;
Department of Internal Medicine,Seoul National University Hospital,Seoul 110-744,South Korea.;
Department of Gastrointestinal Oncology,The First People's Hospital of Foshan,Foshan,Guangdong 528000,P.R.China.;
Department of Inter-nal Medicine,Yonsei University College of Medicine,Seoul 120-752,South Korea.;
Department of Medical Oncology,The Sixth Ailiated Hospital,Sun Yat-sen University,Guangzhou,Guangdong 510655,P.R.China.;
Depart-ment of Hematology-Oncology,Chonnam National University Medical School,Gwangju 519-809,South Korea.;
Department of Digestive Oncology,Tianjin Medical University Cancer Institute and Hospital,Tianjin 300060,P.R.China.;
Department of Internal Medicine,Seoul National University Bundang Hos-pitalSeoul National University College of Medicine,Seongnam 463-707,South Korea.;
Department of Medical Oncology,Union Hospital of Tongji Medical College,Huazhong University of Science and Technology,Wuhan,Hubei 430022,P.R.China.;
Department of Gastroenterological Surgery,Graduate School of Medicine,Osaka University,Osaka 565-0871,Japan.;
International Drug Development Institute,Louvain-La-Neuve 1340,Belgium.;
Department of Oncology,Asan Medical Center,University of Ulsan Collage of Medicine,Seoul 138-736,South Korea.;
Department of Gastrointestinal Oncology,Peking University Cancer Hospital&Institute,Beijing 100-142,P.R.China.;
Tokai Central Hospital,Kakamigahara 504-8601,Japan.;
Metastatic colorectal cancer; Randomized phase Ⅲ clinical trial; XELIRI; Bevacizumab; Second-line therapy;