^○Yumiko Tatsukawa¹, Tamito Sasaki¹, Masahiro Serikawa¹, Tomoyuki Minami¹, Yasutaka Ishii¹, Takashi Ishigaki¹, Teruo Mouri¹, Satoshi Yoshimi¹, Akinori Shimizu¹, Tomofumi Tsuboi¹, Keisuke Kurihara¹, Eisuke Miyaki¹, Kouji Arihiro², Kazuaki Chayama¹ (1.Dept. of Gastroenterology and Metabolism, Hiroshima Univ., Hiroshima, Japan, 2.Dept. of Hislogy, Hiroshima Univ. Hospital)

^○Kaori Masu¹, Kei Ito¹, Shinsuke Koshita¹, Yoshihide Kanno¹, Takahisa Ogawa¹, Yuji Iwashita¹, Yosuke Michikawa¹, Go Kobayashi¹, Yutaka Noda¹, Takashi Sawai² (1.Dept. of Gastroenterology, Sendai City Medical Center, Sendai, Miyagi, Japan, 2.Department of Pathology, Sendai City Medical Center, Sendai, Miyagi, Japan)

^○Shunsuke Tano¹, Hiroyuki Inoue², Reiko Yamada², Takashi Sakuno², Kenichiro Nishikawa², Tetsuro Harada², Takashi Kitade¹, Yasuhiko Hamada¹, Masaki Katsurahara¹, Kyosuke Tanaka¹, Noriyuki Horiki¹, Yoshiyuki Takei² (1.Dept. of Endoscopic Medicine, Mie University Hospital, Mie, Japan, 2.Dept. of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Mie, Japan)

^○Tsuyoshi Suda, Tomoki Nishikawa, Junn Asai, Hajime Takatori, Takeshi Urabe (Dept. of Gastroenterology, Public Central Hospital of Matto Ishikawa, Ishikawa, Japan)

^○Shuntaro Mukai¹, Reiko Ashida², Atsushi Irisawa³, Takao Itoi¹, Atsushi Sofuni¹, Takayoshi Tsuchiya¹, Kentaro Ishii¹, Nobuhito Ikeuchi¹, Kentaro Kamada¹, Goro Shibukawa³, Yoko Abe³, Koh Imbe³, Koki Hoshi³, Akane Yamabe³, Ryo Igarashi³, Fuminori Moriyasu¹ (1.Dept. of Gastroenterology and Hepatology,Tokyo Medical University,Tokyo,Japano, 2.Dept. of Cancer Survey and Gastrointestinal Oncology,Osaka Medical Center for Cancer and Cardiovascular Diseases,Osaka,Japan, 3.Dept. of Gastroenterology,Fukushima Medical University Aizu Medical Center,Aizu,Japan)