^○Takashi Ohta¹, Sachiko Yamamoto², Takayuki Kii³, Hiroki Hara⁴, Ryohei Kawabata^5,6, Junji Kawada⁷, Atsushi Takeno⁸, Jin Matsuyama⁹, Shugo Ueda¹⁰, Hisato Kawakami¹¹, Yoshihiro Okita^12,13, Shunji Endo¹⁴, Yutaka Kimura^6,15, Kazuhiro Yanagihara¹⁶, Tatsuya Okuno¹⁷, Yukinori Kurokawa¹⁸, Toshio Shimokawa¹⁹, Taroh Satoh²⁰ (1.Department of Clinical Oncology / Department of Gastroenterology, Kansai Rosai Hospital, 2.Department of Gastrointestinal Oncology, Osaka International Cancer Institute, 3.Cancer Chemotherapy Center, Osaka Medical and Pharmaceutical University, 4.Department of Gastroenterology, Saitama Cancer Center, 5.Department of Surgery, Osaka Rosai Hospital, 6.Department of Surgery, Sakai City Medical Center, 7.Department of Surgery, Osaka General Medical Center, 8.Department of Surgery, Kansai Rosai Hospital, 9.Department of Surgery, Yao Municipal Hospital, 10.Department of Gastroenterological Surgery and Oncology, Kitano Hospital, Tazuke Kofukai Medical Research Institute, 11.Department of Medical Oncology, Kindai University Faculty of Medicine, 12.Department of Medical Oncology, Kobe City Medical Center General Hospital, 13.Department of Clinical Oncology, Kagawa University Faculty of Medicine, 14.Department of Gastroenterological Surgery, Higashiosaka City Medical Center, 15.Department of Surgery, Kindai University Faculty of Medicine, 16.Department of Medical Oncology, Kansai Electric Power Hospital, 17.Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, 18.Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 19.Department of Medical Data Science, Graduate School of Medicine, Wakayama Medical University, 20.Department of Frontier Science for Cancer and Chemotherapy, Osaka University Graduate School of Medicine)

^○Mao Okada², Shun Yamamoto², Akihiro Ohara², Mai Itoyama², Yoshitaka Honma², Tairo Kashihara³, Koji Inaba³, Koshiro Ishiyama⁴, Junya Oguma⁴, Hiroshi Igaki³, Hiroyuki Daiko⁴, Ken Kato² (1.National Cancer Center Hospital, 2.Department of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, 3.Department of Radiation Oncology, National Cancer Center Hospital, 4.Department of Esophageal Surgery, National Cancer Center Hospital)

^○Ryosuke Kumanishi¹, Takatsugu Ogata¹, Takumi Habu², Hideaki Bando³, Takeshi Fujisawa⁴, Shogo Kumagai², Hisashi Fujiwara⁵, Saori Mishima³, Daisuke Kotani³, Masaki Nakamura⁴, Hidehiro Hojo⁴, Shohei Koyama², Hiroyoshi Nishikawa², Tomonori Yano⁶, Takeo Fujita⁵, Shigenori Kadowaki¹, Takahiro Kinoshita⁷, Masahiro Tajika⁸, Kei Muro¹, Takashi Kojima³ (1.Department of Clinical Oncology, Aichi Cancer Center Hospital, 2.Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Kashiwa, Japan, 3.Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan, 4.Division of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, Kashiwa, Japan, 5.Division of Esophageal Surgery, National Cancer Center Hospital East, Kashiwa, Japan, 6.Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan, 7.Department of Surgical Oncology, National Cancer Center Hospital East, Kashiwa, Japan, 8.Department of Endoscopy, Aichi Cancer Center Hospital, Nagoya, Japan)

^○Keitaro Shimozaki^1,2, Izuma Nakayama¹, Daisuke Takahari¹, Hiroki Osumi¹, Takeru Wakatsuki¹, Akira Oki¹, Mariko Ogura¹, Eiji Shinozaki¹, Keisho Chin¹, Kensei Yamaguchi¹ (1.Department of Gastroenterological chemotherapy, Cancer Institute Hospital of JFCR, 2.Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine)

^○Kazuhiro Shiraishi¹, Toshiko Masuishi², Takatsugu Ogata², Kyoko Kato¹, Keiji Sugiyama¹, Natsuki Nishikawa³, Chiho Kudo⁴, Natsumi Takayanagi⁴, Yukiya Narita², Hiroaki Uda⁵, Shigenori Kadowaki², Masashi Ando², Chiyoe Kitagawa¹, Masato Kataoka⁵, Kei Muro² (1.Department of Medical Oncology, National Hospital Organization Nagoya Medical Center, 2.Department of Clinical Oncology, Aichi Cancer Center Hospital, 3.Division of Clinical Research Coordination, National Hospital Organization Nagoya Medical Center, 4.Department of Clinical Research Support Office, Aichi Cancer Cetnter Hospital, 5.Department of Surgery, National Hospital Organization Nagoya Medical Center)

^○Hirokazu Shoji¹, Daisuke Takahari², Keiko Minashi³, Hiroki Hara⁴, Keisho Chin², Akira Ooki², Mariko Ogura², Izuma Nakayama², Ken Kato¹, Satoru Iwasa¹, Hidekazu Hirano¹, Yusuke Amanuma³, Naoki Ishizuka⁵, Narikazu Boku¹, Kensei Yamaguchi² (1.Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, 2.Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3.Clinical Trial Promotion Department, Chiba Cancer Center, 4.Department of Gastroenterology, Saitama Cancer Center, 5.Department of Clinical Trial Planning and Management, Cancer Institute Hospital of Japanese Foundation for Cancer Research)