^○Masataka Ikeda¹, Hiroyuki Uetake², Taishi Hata³, Takayuki Yoshino⁴, Mari Oba⁵ (1.Division of Lower Gastrointestinal Surgery, Department of Gastroenterological Surgery, Hyogo College of Medicine, 2.Department of Clinical Research, National Hospital Organization Disaster Medical Center, 3.Department of Surgery, Kansai Rosai Hospital, 4.Department of Gastrointestinal Oncology, National Cancer Center Hospital East, 5.Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry)

^○Jun Watanabe¹, Hiromichi Shirasu², Masakazu Ikenaga³, Shingo Noura⁴, Tatsuro Yamaguchi⁵, Manabu Shiozawa⁶, Yoshinori Kagawa⁷, Masahiro Goto⁸, Makoto Yamada⁹, Alexey Aleshin¹⁰, Hiroki Yukami¹¹, Saori Mishima¹¹, Koji Ando¹², Atsushi Hamabe¹³, Masaaki Miyo¹⁴, Hiromichi Ebi¹⁵, Daisuke Kotani¹¹, Yoshiaki Nakamura¹¹, Hiroya Taniguchi¹⁶, Takayuki Yoshino¹¹ (1.Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 2.Division of Gastrointestinal Oncology, Shizuoka Cancer Center, 3.Department of Gastroenterological Surgery, Higashiosaka City Medical Center, 4.Department of Surgery, Toyonaka Municipal Hospital, 5.Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital,, 6.Department of Gastrointestinal Surgery, Kanagawa Cancer Center, 7.Department of Gastroenterological Surgery, Osaka General Medical Center, 8.Internal Medicine II, Osaka Medical and Pharmaceutical University Hospital, 9.Department of Surgery, Gifu Municipal Hospital, 10.Natera, Inc., San Carlos, CA, USA, 11.Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, 12.Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 13.Department of Surgery, Surgical Oncology and Science, Sapporo Medical University, 14.Department of Surgery, National Hospital Organization Osaka National Hospital, 15.Division of Molecular Therapeutics, Aichi Cancer Center Research Institute, 16.Department of Clinical Oncology, Aichi Cancer Center Hospital)

^○Kentaro Yamazaki¹, Satoshi Yuki², Hiroya Taniguchi³, Hideaki Bando⁴, Yu Sunakawa⁵, Manabu Shiozawa⁶, Hisateru Yasui⁷, Naoki Takahashi⁹, Hironaga Satake⁹, Nobuhisa Matsuhashi¹⁰, Akiyoshi Kanazawa¹¹, Yosuke Horita¹², Masahiro Goto¹³, Naohiro Okano¹⁴, Kaname Yamashita¹⁵, Akihito Tsuji¹⁶, Hiromichi Ebi¹⁷, Yukiko Abe¹⁸, Shogo Nomura¹⁹, Takayuki Yoshino⁴ (1.Division of Gastrointestinal Oncology, Shizuoka Cancer Center, 2.Department of Gastroenterology and Hepatology, Hokkaido University Hospital, 3.Department of Clinical Oncology, Aichi Cancer Center Hospital, 4.Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, 5.Department of Clinical Oncology, St. Marianna University School of Medicine, 6.Department of Gastrointestinal Surgery, Kanagawa Cancer Center, 7.Department of Medical Oncology, Kobe City Medical Center General Hospital, 8.Department of Gastroenterology, Saitama Cancer Center, 9.Cancer Treatment Center, Kansai Medical University Hospital, 10.Department of Gastroenterological Surgery, Gifu University Hospital, 11.Department of Surgery, Shimane Prefectural Central Hospital, 12.Department of Gastroenterological Oncology, Saitama Medical University International Medical Center, 13.Cancer Chemotherapy Center, Osaka Medical College Hospital, 14.Department of Medical Oncology, Kyorin University Faculty of Medicine, 15.Division of Medical Oncology Cancer Research Institute, Kanazawa University, 16.Department of Clinical Oncology, Faculty of Medicine, Kagawa University, 17.Division of Molecular Therapeutics, Aichi Cancer Center Research Institute, 18.Board member, G&G Science Co., Ltd., 19.Clinical Research Support Office, National Cancer Center Hospital East)

^○Kensei Yamaguchi¹, Salvatore Siena², Kanwal Raghav³, Toshiki Masuishi⁴, Tomohiro Nishina⁵, Elena Elez⁶, Javier Rodriguez⁷, Ian Chau⁸, Maria Di Bartolomeo⁹, Hisato Kawakami¹⁰, Fumitaka Suto¹¹, Kojiro Kobayashi¹¹, Makito Koga¹², Koichiro Inaki¹², Yusuke Kuwahara¹², Issey Takehara¹², Axel Grothey¹³, Takayuki Yoshino¹⁴ (1.The Cancer Institute Hospital of JFCR, Tokyo, Japan, 2.Department of Oncology and Hemato-Oncology, Università degli Studi di Milano and Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy, 3.Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA, 4.Aichi Cancer Center Hospital, Aichi, Japan, 5.National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan, 6.Hospital Universitari Vall d’Hebron Institite of Oncology (VHIO), Barcelona, Spain, 7.Clinica Universidad de Navarra, Navarra, Spain, 8.Royal Marsden NHS Foundation Trust, Sutton, United Kingdom, 9.Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy, 10.Kindai University Hospital, Osaka, Japan, 11.Daiichi Sankyo, Inc., Basking Ridge, NJ, USA, 12.Daiichi Sankyo, Co., Ltd., Tokyo, Japan, 13.West Cancer Center, Germantown, TN, USA, 14.National Cancer Center Hospital East, Kashiwa, Japan)

^○Toshiki Masuishi¹, Kotani Daisuke², Takashima Atsuo³, Kato Takeshi⁴, Satoh Taroh⁵, Komatsu Yoshito⁶, Shiozawa Manabu⁷, Esaki Taito⁸, Izawa Naoki⁹, Takeuchi Shinji¹⁰, Bando Hideaki², Iwasa Satoru³, Hasegawa Hiroko⁴, Yamaguchi Toshifumi⁵, Taniguchi Hiroya¹, Yoshino Takayuki² (1.Aichi Cancer Center Hospital, 2.National Cancer Center Hospital East, 3.National Cancer Center Hospital, 4.National Hospital Organization Osaka National Hospital, 5.Osaka University Hospital, 6.Hokkaido University Hospital, 7.Kanagawa Cancer Center, 8.National Hospital Organization Kyushu Cancer Center, 9.St. Marianna University School of Medicine Hospital, 10.Kanazawa University Hospital)

^○Toshifumi Yamaguchi¹, Kotani Daisuke², Takashima Atsuo³, Kato Takeshi⁴, Masuishi Toshiki⁵, Komatsu Yoshito⁶, Shiozawa Manabu⁷, Esaki Taito⁸, Izawa Naoki⁹, Takeuchi Shinji¹⁰, Bando Hideaki², Iwasa Satoru³, Hasegawa Hiroko⁴, Satoh Taroh¹, Taniguchi Hiroya⁵, Yoshino Takayuki² (1.Osaka University Hospital, 2.National Cancer Center Hospital East, 3.National Cancer Center Hospital, 4.National Hospital Organization Osaka National Hospital, 5.Aichi Cancer Center Hospital, 6.Hokkaido University Hospital, 7.Kanagawa Cancer Center, 8.National Hospital Organization Kyushu Cancer Center, 9.St. Marianna University School of Medicine Hospital, 10.Kanazawa University Hospital)