^○Masaaki Kagoura, Kazuteru Monden, Chiaki Kobatake, Masashi Yoshimoto, Masayoshi Hioki, Hiroshi Sadamori, Norihisa Takakaura (Department of Surgery, Fukuyama city Hospital, Hiroshima, Japan)

^○Yoshiki Satou, Daisuke Morioka, Kazuya Yamaguchi, Nobutoshi Horii, Kentarou Miyake, Takashi Murakami, Norio Ooyama, Shinji Togou (Department of Surgery, Yokohamaekisaikai Hospital, Kanagawa, Japan231-)

^○Satoshi Nemoto, Shunichi Ariizumi, Yukihito Kotera, Akiko Omori, Shingo Yamashita, Taka-aki Kato, Yuto Egawa, Masakazu Yamamoto (Department of Surgery, Tokyo Woman's Medical University, Tokyo, Japan)

^○Nobuhiko Kurata, Yasuharu Onishi, Hideya Kamei, Satoshi Ogiso, Yasuhiro Ogura (Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan)

^○Go Shibuya, Shunichi Ariizumi, Satoshi Nemoto, Shingo Yamashita, Akiko Omori, Takaaki Kato, Yoshihito Kotera, Hiroto Egawa, Masakazu Yamamoto (Department of Gastroenterological Surgery, Tokyo Women's Medical University, Tokyo, Japan)