^○Tomoharu Yamada, Nobuo Toda, Satoshi Kawamura, Yuki Karasawa, Yuki Hayata, Daisaku Ito, Mari Yamagami, Koki Kawanishi, Koki Sato, Kentaro Kojima, Takamasa Oki, Michiharu Seki, Kazumi Tagawa (Dept. of Gastroenterology, Mitsui Memorial Hospital, Tokyo, Japan)

^○Koki Kawanishi, Nobuo Toda, Satoshi Kawamura, Yuki Karasawa, Yuki Hayata, Daisaku Ito, Mari Yamagami, Tomoharu Yamada, Koki Sato, Yasuhide Yamamoto, Kentaro Kojima, Takamasa Oki, Toshihiko Arizumi, Michiharu Seki, Kazumi Tagawa (Gastroenterology Department, Mitsui Memorial Hospital, Tokyo, Japan)

^○Daisuke Kikuchi, Kosuke Nomura, Toshiro Iizuka, Yasutaka Kuribayashi, Ryusuke Kimura, Satoshi Yamashita, Tsukasa Furuhata, Akira Matsui, Toshifumi Mitani, Osamu Ogawa, Shu Hoteya, mitsuru Kaise (Dept. of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

^○Koki Kawanishi, Nobuo Toda, Satoshi Kawamura, Yuki Karasawa, Yuki Hayata, Daisaku Ito, Mari Yamagami, Tomoharu Yamada, Koki Sato, Yasuhide Yamamoto, Kentaro Kojima, Takamasa Oki, Toshihiko Arizumi, Michiharu Seki, Kazumi Tagawa (Gastroenterology Department, Mitsui Memorial Hospital, Tokyo, Japan)

^○Kazuko Shinagawa, Akira Ueda, Akio Entani, Kanako Ogawa (Dep. of Gastroenterology,Toyama Red Cross Hospital, Japan)