^○Masamichi Mizuma, Fuyuhiko Motoi, Mitsuhiro Shimura, Tatsuo Hata, Masahiro Iseki, Tatsuyuki Takadate, Kyohei Ariake, Kunihiro Masuda, Takeshi Aoki, Masaharu Ishida, Koji Fukase, Hideo Ohtsuka, Kei Nakagawa, Takanori Morikawa, Hiroki Hayashi, Takeshi Naitoh, Michiaki Unno (Department of Surgery, Tohoku University, Sendai, Japan)

^○Minako Nagai, Takahiro Akahori, Satoshi Nishiwada, Satoshi Nakagawa, Kota Nakamura, Takeo Nomi, Daisuke Hokuto, Takahiro Yoshikawa, Yasuko Matsuo, Naoya Ikeda, Masayuki Sho (Department of Surgery, Nara Medical University, Nara, Japan)

^○Yuko Mataki¹, Kosei Maemura¹, Hiroshi Kurahara¹, Yota Kawasaki¹, Motoyuki Hashiguchi¹, Kiyonori Tanoue¹, Masahiko Sakoda¹, Shinichi Ueno², Hiroyuki Shinchi³, Shoji Natsugoe¹ (1.Department of Digestive, Breast and Thyroid Surgery, Kagoshima University, Japan, 2.Department of Clinical Oncology, Kagoshima University, Japan, 3.Deaptment of Health Science, Kagoshima University, Japan)

^○Manami Doi, Goro Honda, Yuki Homma, Yusuke Ome, Jun Yamamoto (Department of Surgery,Tokyo Metropolitan Cancer and Infectious diseases Center Komagome Hospital,, Tokyo, Japan)

^○Hiroto Matsui¹, Yoshihiro Tokuhisa¹, Yukio Tokumitsu¹, Kensuke Yamada¹, Taichi Kuwahara¹, Yasuhiro Fujiwara¹, Masao Nakajima¹, Takuya Fuzimoto¹, Satoshi Matsukuma¹, Kazuhiko Sakamoto¹, Shinsuke Kanekiyo¹, Shinobu Tomochika¹, Michihisa Iida¹, Nobuaki Suzuki¹, Shigeru Takeda¹, Shigefumi Yoshino², Shoichi Hazama³, Tomio Ueno⁴, Hiroaki Nagano¹ (1.Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan, 2.Yamaguchi University Hospital Cancer Center, Yamaguchi, Japan, 3.Department of Translational Research and Developmental Therapeutics against Cancer , Yamaguchi University School of Medicine, Yamaguchi, Japan, 4.Department of Digestive Surgery, Kawasaki Medical School, Okayama, Japan)

^○Yasuhiro Murata, Yusuke Iizawa, Aoi Hayasaki, Takehiro Fujii, Hiroyuki Kato, Akihiro Tanemura, Naohisa Kuriyama, Yoshinori Azumi, Masashi Kishiwada, Shugo Mizuno, Masanobu Usui, Hiroyuki Sakurai, Shuji Isaji (Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Tsu, Japan)