^○Elyor Djabbarxanovich Sayfutdinov (Faculty Surgery Tashkent Medical Academy)

^○Shohei Takaichi, Yoshifumi Iwagami, Hidetoshi Eguchi, Daisaku Yamada, Tadafumi Asaoka, Takehiro Noda, Koichi Kawamoto, Kunihito Gotoh, Shogo Kobayashi, Yuichiro Doki, Masaki Mori (Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan)

^○Fumitoshi Mizutani, Hideo Yamamoto, Hiroshi Hasegawa (Department of Surgery, Tokai Hospital, Nagoya ,Japan)

^○Tomohiko Shinkawa, Yusuke Watanabe, Sho Endo, Yuji Abe, Kazuyoshi Nishihara (Department of Surgery, Kitakyushu Municipal Medical Center, Fukuoka, Japan)

^○Sota Usui, Shinjiro Kobayashi, Kohei Segami, Hiroyuki Hoshino, Masafumi Katayama, Satoshi Koizumi, Takehito Otsubo (Department of Gastrointestinal and General Surgery, St. Marianna University of Medicine, Kanagawa, Japan)

^○Munenori Takaoka, Atsushi Urakami, Kazuhiro Yoshida, Naomasa Ishida, Chiharu Tamura, Masaki Matsubara, Jiro Hayashi, Tomoki Yamatsuji, Minoru Haisa, Yoshio Naomoto (Department of General Surgery, Kawasaki Medical School)