^○Masaaki Shimada, Hiroaki Iwase, Noboru Hirashima, Masayuki Okeya, Nobumitsu Ryuge, Yuichi Kida, Masaya Esaki, Bunichiro Kato, Noboru Urata, Momoko Goto, Rinako Mizuta, Satoshi Unita, Takashi Kondo, Daiki Tanaka (Dept. of Gastroenterology, National Hospital Organization, Nagoya Medical Center, Nagoya, Japan)

^○Tatsuhisa Yasaka¹, Takashi Hisabe¹, Hiroshi Ishihara¹, kensei Otsu¹, Toshiyuki Matsui¹, Kenntarou Imamura², Hiroshi Tanabe², Akinori Iwashita² (1.Dept. of Gastroenterology , Fukuoka Universiy Chikushi Hospital. Fukuoka , Japan, 2.Dept. of Pathology , Fukuoka Universiy Chikushi Hospital. Fukuoka , Japan)

^○Shinichiro Hori^1,2, Norifumi Nishide², Toshihiko Matsumoto², Kaori Hino², Akio Nakasya², Akinori Asagi², Takeshi Kajiwara², Tomohiro Nishina², Seijin Nadano², Masahito Tanimizu² (1.Dept. of Endoscopy, National Hospital Organization Shikoku Cancer Center., Ehime, Japan, 2.Dept. of Gatroentelorogy, National Hospital Organization Shikoku Cancer Center., Ehime, Japan)

^○Erina Ueno¹, Hiroshi Kawano¹, MAsayuki Sawada¹, Teppei Kobayashi¹, Naoki Kamachi¹, Toshimitu Tanaka¹, Osamu Tsuruta², Takuji Torimura² (1.Div.Of Gastroenterology,St Marry Hospital,Fukuoka,Japan, 2.Div.of Gastroenterology,Dep.of internal medicine, Kurume Univ.Sch.of Med.,Fukuoka,Japan)

^○Toshiyuki Makino, Akira Horiuchi, Masashi Kajiyama (Digestive Disease Center, Showa Inan General Hospital, Komagane, Japan)