^○Seiichi Yoshikawa, Daiki Natsui, Syunsuke Nojiri, Takayuki Watanabe, Keisuke Morita, Masashi Takatsuna, Yuuji Kobayashi, Tsutomu Miura, Manabu Takeuchi (Gastroenterology, Nagaoka Red Cross Hospital)

^○Takayo Ota¹, Katsuya Sakashita², Kiyotaka Yukimoto², Fumimoto Yuuichi², Ryugo Sawada², Toshiya Hashimura³, Kurumi Seki⁴, Akira Okimura⁵, Noriko Tanaka⁶, Hiroyuki Maeda⁶, Tomohiro Oohira⁶, Masahiro Tokunaga⁶, Toshimasa Tsujinaka², Masahiro Fukuoka¹ (1.Department of Medical Oncology, Izumi City General Hospital, 2.Department of Surgery, Izumi City General Hospital, 3.Department of Anesthesiology, 4.Department of Pathology, Izumi City General Hospital, 5.Department of Diagnostic Pathology, Tokyo Medical University Hachioji Medical Center, 6.Department of Radiology, Izumi City General Hospital)

^○Toranosuke Hattori¹, Daiki Taguchi¹, Koji Fukuda¹, Kazuhiro Shimazu¹, Taichi Yoshida¹, Hanae Shinozaki¹, Hiroshi Nanjyo², Hiroyuki Shibata¹ (1.Department of Clinical Oncology, Akita University, 2.Department of Clinical Pathology, Akita University Hospital)

^○Hajime Ishibashi (Ibaraki Prefectural Central Hospital)

^○Takashi Seki, Eiji Sasaki, Shinya Yokoyama, Min Kanamori (Department of Surgery, Meijo Hospital)

^○Kirio Kawai¹, Masato Hayashi¹, Akira Hirota¹, Mariko Nishioka¹, Tomohiro Maesono¹, Naohiro Okano¹, Tomonori Mizutani¹, Fumio Nagashima¹, Tomohiko Taki², Junji Furuse¹ (1.Department of Medical Oncology, Kyorin University, 2.Department of Clinical Haematology, Faculty of Medical Technology, Kyorin University)

^○Itaru Satou, Yoko Obara, Natumi Kurosaka, Souichirou Ueno, Hideo Nakajima (Department of Medical Oncology)

^○Daisuke Kobayashi¹, Hiroshi Hakamata¹, Yuta Noji¹, Shuichiro Ando¹, Naoya Takeda¹, Masashi Negita¹, Daiki Horiba¹, Taizo Hayashi¹, Yohei Takeda¹, Masayuki Tsutsuyama¹, Hiroyuki Yokoyama¹, Hiroyuki Sugimoto¹, Yoshiki Niwa², Yoshinari Mochizuki¹, Kenji Taniguchi¹ (1.Department of Gastroenterological Surgery, Komaki City Hospital, 2.Department of Gastroenterology, Komaki City Hospital)

^○Atsuko Kakihara, Shiho Arima, Issei Kojima, Makoto Hinokuchi, Hidehito Maeda, Akihito Tanaka, Shiro Tanoue, Fumisato Sasaki, Shinichi Hashimoto, Syuji Kanmura, Akio Ido (Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences)

^○Sachiko Seki (Tokyo Saiseikai Central Hospital)

^○Yoshiaki Mihara, Tsuyoshi Fukumoto, Yosuke Horita, Takashi Ichimura, Tetsuya Hamaguchi (Department of Medical Oncology, Saitama Medical University International Medical Center)

^○Shohei Ueno^1,2, Yudai Shinohara¹, Takafumi Kitazono¹, Tomomi Koike¹, Eishi Baba³, Hozumi Shimokawa¹ (1.Department of Hematology/Oncology, Japan Community Healthcare Organization Kyushu Hospital, 2.Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, 3.Department of Oncology and Social Medicine, Kyushu University Graduate School of Medical Sciences)