^○Shingo Yamashita, Shumichi Ariizumi, Yoshihito Kotera, Akiko Oomori, Takaaki Kato, Satoshi Nemoto, Satoshi Katagiri, Hiroto Egawa, Masakazu Yamamoto (Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University)

^○Koji Minami¹, Kiyokazu Hiwatashi¹, Hiroshi Okumura¹, Hiroyuki Takatori¹, Hideyuki Ooi¹, Shigeho Maenohara¹, Shoji Natsugoe² (1.The Department of Surgery, JA Kagoshima Kouseiren Hospital, 2.Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University)

^○Kohei Segami, Satoshi Koizumi, keisuke Ida, Hiroyuki Hoshino, Masafumi Katayama, Shinjiro Kobayashi, takehito Otsubo (Division of Gastroenterological and General Surgery,St. Marianna University School of Medicine,Kanagawa,Japan)

^○Fumiaki Kishihara, Jun Muto, Hiroko Yano, Ayumi Matsuyama, Masaki Yoshida, Teppei Aso, Nobuhito Chikazawa, Mikimasa Ishikawa (Department of Surgery, Steel Memorial Yawata Hospital)

^○Takazumi Tsunenari, Toru Kato, Makoto Nishikawa, Mayumi Hoshikawa, Takahiro Einama, Takuji Noro, Shuichi Hiraki, Yoshiki Kajiwara, Eiji Shinto, Suefumi Aosasa, Hironori Tsujimoto, Kazuo Hase, Hideki Ueno, Jyunji Yamamoto (Department of Surgery, National Defense Medical College , Saitama, Japan)