^○Takahiro Kamiga (Department of Surfery, Sendai Tokushukai Hospital)

^○Hiroyuki Kato, Yukio Asano, Masahiro Ito, Norihiko Kawabe, Satoshi Arakawa, Masahiro Shimura, Daisuke Koike, Chihiro Hayashi, Takayuki Ochi, Kenshiro Kamio, Toki Kawai, Hironobu Yasuoka, Takahiko Higashiguchi, Akihiko Horoguchi (Department of Gastroenterological Surgery Fujita Health University School of Medicine Bantane Hospital)

^○Yu Chen, Saito Kensuke, Sato Atushi (Department of Medical Oncology, Hirosaki University)

^○Yurie Tokito, Kazunaga Ishigaki, Yousuke Nakai, Rintaro Fukuda, Shinya Takaoka, Hiroki Oyama, Noriyuki Inokuma, Sachiko Kanai, Kensaku Noguchi, Tatsunori Suzuki, Ryunosuke Hakuta, Kei Saito, Tomotaka Saito, Naminatsu Takahara, Tsuyoshi Hamada, Suguru Mizuno, Hirofumi Kogure, Mitsuhiro Fujishiro (Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo)

^○Shuichi Mitsunaga^1,2, Kanae Inoue¹, Tomonao Taira¹, Hiroki Eguchi¹, Kei Okumura¹, Taro Shibuki¹, Kazuo Watanabe¹, Mitsuhito Sasaki¹, Hiroshi Imaoka¹, Masafumi Ikeda¹ (1.Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, 2.Division of Biomarker Discovery, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center)

^○Alexander E. Purnomo¹, Jeremiah H Wijaya¹, Michael G Lokanata¹, Regan Elbert¹, Rivaldo S Heriyanto¹, Yang Yang E Arjuna¹, Andree Kurniawan² (1.Faculty of Medicine, Pelita Harapan University, 2.Departement of Internal Medicine, Faculty of Medicine, Pelita Harapan University)

^○Tomohiro Kubo¹, Kohichi Takada¹, Makoto Yoshida¹, Joji Muramatsu¹, Ryo Ito¹, Koji Miyanishi¹, Ayako Murota^2,3, Yumi Tanaka², Akihiro Sakurai², Junji Kato¹ (1.Department of Medical Oncology, Sapporo Medical University School of Medicine, 2.Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, 3.Department of Gastroenterology, Sapporo Medical University School of Medicine)