^○Yujiro Tsuda, Terumasa Yamada, Yoshinao Chinen, Hiroaki Itakura, Hirotoshi Takayama, Masami Ueda, Shinsuke Nakashima, Katsuya Ohta, Shinichi Adachi, Shunji Endo, Masakazu Ikenaga (Department of Gastroenterological Surgery, Higashiosaka City Medical Center)

^○Katsunori Matsushita¹, Masamitsu Konno², Hideyoshi Eguchi¹, Yoshihumi Iwagami¹, Daisaku Yamada¹, Tadafumi Asaoka¹, Takehiro Noda¹, Koichi Kamamoto¹, Kunihito Gotoh¹, Shogo Kobayashi¹, Takumi Okuda³, Satoshi Obika³, Hideshi Ishii², Masaki Mori¹, Yuicihro Doki¹ (1.Department of Surgery, Osaka University, Osaka, Japan, 2.Department of Cancer Profiling Discovery, Graduate School of Medicine, Osaka University, Osaka, Japan, 3.Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan)

^○Nobuhiko Ueda, Yoritaka Fujii, Seiko Miura, Jun Fujita, Yasuto Tomita, Toshio Ohnishi, Hideto Fujita, Shinichi Kinami, Takeo Kosaka (Department of General and Digestive Surgery, Kanazawa Medical University)

^○Mariko Kamiya¹, Naoto Yamamoto¹, Hirokazu Yotsumoto¹, Hirohide Inoue¹, Masaaki Murakawa², Takashi Oshima², Norio Yukawa², Yasushi Rino², Munetaka Masuda², Soichiro Morinaga¹ (1.Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Kanagawa, Japan, 2.Department of Surgery, Yokohama City University, Kanagawa, Japan)

^○Masaya Asato, Morihito Ota (Department of Surgery, Tomishiro Chuo Hospital)

^○Takefumi Yazawa, Ryuhei Aoyama, Michihiro Yamamoto, Hidekazu Yamamoto, Masazumi Zaima (Department of Surgery, Shiga General Hospital, Shiga, Japan)