^○Hirohisa Kitagawa¹, Hirofumi Terakawa², Isamu Makino², Hidehiro Tajima², Tomoharu Miyashita², Tetsuo Ohta², Noriyuki Ozaki³ (1.Department of Surgery, Toyama City Hospital, Toyama, Japan, 2.Department of Gastroenterological Surgery, Kanazawa University, Kanazawa, Japan, 3.Department of Functional Anatomy, Kanazawa University, Kanazawa, Japan)

^○Naoya Akazawa, Masaya Oikawa, Takaho Okada (Department of Surgery, Sendai City Medical Center Sendai Open Hospital, Miyagi, Japan)

^○Naoki Yoshida, Yuusuke Mitsuka, Kenichi Teramoto, Masatoshi Makuuchi (Department of Surgey, Towa Hospital, Tokyo, Japan)

^○Toki Kawai, Shin Ishihara, Masahiro Ito, Yukio Asano, Satoshi Arakawa, Shinpei Furuta, Masahiro Shimura, Chihiro Hayashi, Kenshiro Kamio, Hironobu Yasuoka, Takahiko Higashiguchi, Akihiko Horiguchi (Department of Gastroenterological Surgery, School of Medicine, Fujita Health University Banbuntane Houtokukai Hospital)

^○Saidrakhim Nodirovich Lukmonov (Faculty Sugery Tashkent Medical Academy)

^○Mitsuhiro Asakuma, Tetsunosuke Shimizu, Yoshihiro Inoue, Fumitoshi Hirokawa, Michihiro Hayashi, Kazuhisa Uchiyama (Department of General and Gastroenterological Surgery, Osaka Medical College, Osaka, Japan)