^○Takao Suzuki¹, Asako Suzuki¹, Shoko Akiyama¹, Kakutaro Narasaki² (1.Department of Medical Oncology, National Hospital Organization, Sendai Medical Center, 2.Department of Radiology National Hospital Organization Sendai Medical Center)

^○Sakuya Koreishi¹, Takashi Imajima¹, Yudai Shinohara¹, Hiroshi Ariyama¹, Hitoshi Kusaba¹, Eishi Baba^1,2 (1.Department of Medicine and Biosystemic Science, Kyushu University, 2.Department of Oncology and Social Medicine, Kyushu University)

^○Yuuki Sonoda¹, Kouhei Hayashi¹, Tomonori Araki¹, Takuya Honda², Kazuhiko Nakao¹ (1.Department of Gastroenterology, Nagasaki University Hospital, 2.Clinical Oncology Center, Nagasaki University Hospital)

^○Akira Tsunoda¹, Koshi Sukeno¹, Oka Hiroki¹, Takahito Kitajima², Yasutaka Tono¹, Mikiya Ishihara¹, Takeshi Yokoe², Kanako Saito¹, Satoshi Tamaru¹, Yoshiki Yamashita¹, Masaki Ohi², Yuji Toiyama², Toshiro Mizuno¹, Isao Tawara¹ (1.Department of Medical Oncology, Mie University Hospital, 2.Department of Gastrointestinal and Pediatric Surgery, Mie University Hospital)

^○Sharon Chen¹, Billy Susanto¹, Andree Kurniawan² (1.Faculty of Medicine, Pelita Harapan University, 2.Department of Internal Medicine, Faculty of Medicine, Pelita Harapan University)

^○Kentaro Harada², Shun Yamamoto², Akihiro Ohara², Mai Itoyama², Yoshitaka Honma², Tairo Kashihara³, Kouji Inaba³, Koshiro Ishiyama⁴, Jyunya Oguma⁴, Hiroshi Igaki³, Hiroyuki Daiko⁴, Ken Kato² (1.Department of Gastrointestinal Medical Oncology, 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)

^○Fumitaka Endo¹, Yuji Akiyama¹, Shigeaki Baba¹, Haruka Nikai¹, Akira Umemura¹, Hirokatsu Katagiri¹, Takeshi Iwaya¹, Koki Otsuka¹, Hiroyuki Nitta¹, Keisuke Koeda², Akira Sasaki¹ (1.Department of Surgery, Iwate Medical University School of Medicine, 2.Department of Medical Safety Science, Iwate Medical University School of Medicine)

^○Fumiyasu Hanamura, Youji Fuchizaki, Tomohiro Nishijima, Masato Komoda, Taito Esaki (Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center)