^○Yasuhiro Shimada¹, Inada Ryo², Nagasaka Takeshi³, Ojima Hitoshi⁴, Noura Shingo⁵, Tanioka Hiroaki⁶, Munemoto Yoshinori⁷, Ishibashi Keiichiro⁸, Shindo Yoshiaki⁹, Shimokawa Mototsugu¹⁰, Mishima Hideyuki¹¹, Yamaguchi Yoshiyuki¹², Okajima Masazumi¹³ (1.Clinical Oncology Division, Kochi Health Sciences Center, 2.Department of Gastroenterological Surgery, Kochi Health Sciences Center, 3.Department of Gastroenterological Surgery, Okayama University Hospital, 4.Department of Gastroenterological Surgery, Gunma Prefectural Cancer Center, 5.Department of Surgery, Osaka Rosai Hospital, Department of Surgery, Toyonaka Municipal Hospital, 6.Department of Gastroenterological Surgery, Okayama University Hospital, 7.Department of Surgery, Fukui-ken Saiseikai Hospital, 8.Department of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University, 9.Gastroenterological Surgery, Nakadori General Hospital, 10.National Hospital Organization Kyushu Cancer Center, 11.Cancer Center, Aichi Medical University, 12.Department of Clinical Oncology, Kawasaki Medical School Hospital, 13.Department of Surgery, Hiroshima City Hospital)

^○Taichi Yabuno¹, Akihito Tsuji², Takuya Tokunaga³, Satoshi Yuki⁴, Toshihiro Kudo⁵, Naoki Mashita⁶, Koji Ando⁷, Nobumichi Takeuchi⁸, Tomomi Kashiwada⁹, Masato Kataoka¹⁰, Mitsugu Kochi¹¹, Tamotsu Sagawa¹², Masahito Kotaka¹³, Yutaro Kubota¹⁴, Yu Sunakawa¹⁵, Takashi Sekikawa¹⁶, Masato Nakamura¹⁷, Masahiro Takeuchi¹⁸, Wataru Ichikawa¹⁶, Masashi Fujii¹⁹ (1.Department of Gastrointestinal Surgery, Yokohama Municipal Citizen's Hospital, 2.Department of Clinical Oncology, Faculty of Medicine, Kagawa University, 3.Department of Surgery, Tokushima University, 4.Department of Gastroenterology and Hepatology, Hokkaido University Hospital, 5.Department of Clinical Oncology, Osaka International Cancer Institute, 6.Department of Surgery, Konan Kosei Hospital, 7.Department of Surgery and Science, Kyushu University, 8.Department of Clinical Oncology, Ina Central Hospital, 9.Department of Clinical Oncology, Saga Prefectural Hospital Koseikan, 10.Department of Surgery, National Hospital Organization Nagoya Medical Center, 11.Department of Digestive Surgery, Nihon University Itabashi Hospital, 12.Division of Gastroenterology, National Hospital Organization Hokkaido Cancer Center, 13.Gastrointestinal Cancer Center, Sano Hospital, 14.Department of Clinical Oncology, Showa University Hospital, 15.Department of Clinical Oncology, St. Marianna University School of Medicine, 16.Division of Medical Oncology, Showa University Fujigaoka Hospital, 17.Aizawa Comprehensive Cancer Center, Aizawa Hospital, 18.Graduate School of Mathematical Sciences, The University of Tokyo, 19.Department of Digestive Surgery, Nihon University School of Medicine)

^○Takayuki Yoshino¹, Thierry Andrɲ, Kai-Keen Shiu³, Tae Won Kim⁴, Benny Vittrup Jensen⁵, Lars Henrik Jensen⁶, Cornelius J. A. Punt⁷, Denis Smith⁸, Rocio Garcia-Carbonero⁹, Peter Gibbs¹⁰, T. Le Dung¹¹, Noriaki Adachi¹², David Fogelman¹³, Patricia Marinello¹³, Luis A. Diaz Jr.¹⁴ (1.National Cancer Center Hospital East, 2.Hopital Saint-Antoine, Paris, France, 3.University College Hospital, NHS Foundation Trust, London, UK, 4.Asan Medical Center, Seoul, South Korea, 5.Herlev and Gentofte Hospital, Herlev, Denmark, 6.University Hospital of Southern Denmark, Vejle, Denmark, 7.Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands, 8.Hopital Haut Leveque, Pessac, France, 9.Hospital Universitario 12 de Octubre, Imas12, UCM, Madrid, Spain, 10.Western Hospital, Footscray, VIC, Australia, 11.Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA, 12.MSD KK, Tokyo, Japan, 13.Merck & Co., Inc., Kenilworth, NJ, USA, 14.Memorial Sloan Kettering Cancer Center, New York, NY, USA)

^○Tamotsu Sagawa¹, Akihito Tsuji², Hironaga Satake³, Masato Nakamura⁴, Yu Sunakawa⁵, Shotaro Korehisa⁶, Masato Matsuura⁷, Yasuhiro Yuasa⁸, Takashi Mine⁹, Hiroaki Nagano¹⁰, Kunitoshi Shigeyasu¹¹, Tatsuya Kinjo¹², Masahito Kotaka¹³, Hiroyuki Okuyama², Yutaro Kubota¹⁴, Mitsugu Kochi¹⁵, Toshiki Masuishi¹⁶, Masahiro Takeuchi¹⁷, Wataru Ichikawa¹⁸, Masashi Fujii¹⁹ (1.Division of Gastroenterology, National Hospital Organization Hokkaido Cancer Center, 2.Department of Clinical Oncology, Faculty of Medicine, Kagawa University, 3.Department of Medical Oncology, Kobe City Medical Center General Hospital, 4.Aizawa Comprehensive Cancer Center, Aizawa Hospital, 5.Department of Clinical Oncology, St. Marianna University School of Medicine, 6.Department of Surgery, National Hospital Organization Fukuoka-higashi Medical Center, 7.Department of Surgery, Kobe City Nishi-Kobe Medical Center, 8.Department of Gastrointestinal Surgery, Tokushima Red Cross Hospital, 9.Department of Clinical Oncology, Nagasaki Harbor Medical Center, 10.Department of Gastroenterological, Breast and Endocrine Surgery, 11.Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 12.Division of Digestive and General Surgery, University of the Ryukyus, 13.Gastrointestinal Cancer Center, Sano Hospital, 14.Department of Clinical Oncology, Showa University Hospital, 15.Department of Digestive Surgery, Nihon University Itabashi Hospital, 16.Department of Clinical Oncology, Aichi Cancer Center Hospital, 17.Graduate School of Mathematical Sciences, The University of Tokyo, 18.Division of Medical Oncology, Showa University Fujigaoka Hospital, 19.Department of Digestive Surgery, Nihon University School of Medicine)

^○Masato Nakamura¹, Yasutoshi Kuboki², Tetsuji Terazawa³, Toshiki Masuishi⁴, Jun Watanabe⁵, Hitoshi Ojima⁶, Akitaka Makiyama^7,8, Masahito Kotaka⁹, Hiroki Hara¹⁰, Takashi Ohta¹¹, Eiji Oki¹², Yu Sunakawa¹³, Soichiro Ishihara¹⁴, Hiroya Taniguchi⁴, Takako Eguchi Nakajima¹⁵, Satoshi Morita¹⁶, Kuniaki Shirao¹⁷, Takayuki Yoshino¹⁸ (1.Aizawa Comprehensive Cancer Center, Aizawa Hospital, 2.Department of Experimental Therapeutics, National Cancer Center Hospital East, 3.Cancer Chemotherapy Center, Osaka Medical and Pharmaceutical University, 4.Department of Clinical Oncology, Aichi Cancer Center Hospital, 5.Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 6.Gastrointestinal Surgery, Gunma Prefectural Cancer Center, 7.Department of Hematology/Oncology, Japan Community Healthcare Organization Kyushu Hospital, 8.Cancer Center, Gifu University Hospital, 9.Gastrointestinal Cancer Center, Sano Hospital, 10.Department of Gastroenterology, Saitama Cancer Center, 11.Department of Clinical Oncology, Kansai Rosai Hospital, 12.Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 13.Department of Clinical Oncology, St. Marianna University School of Medicine, 14.Department of Surgical Oncology, The University of Tokyo, 15.Department of Early Clinical Development, Kyoto University Graduate School of Medicine, 16.Department of Biomedical Statistics and Bioinformatics, Graduate School of Medicine, Kyoto University, 17.Oita University Faculty of Medicine, 18.Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East)