^○Yuki Kondo¹, Kaoru Yokoyama¹, Tomoya Saito¹, Kana Kawagishi¹, shohei ooka¹, Miwa Sada¹, Kiyonori Kobayashi², Wasaburo Koizumi¹ (1.Dept. of Gastroenterology Kitasato University School of Medicine, Japan, 2.Research and Development Center for New Medical Frontiers,Kitasato University,School of Medicine)

^○Yoshiaki Hayashi, Kenkei Hasatani, Hiroyuki Aoyagi, Yu Akazawa, Takuto Nosaka, Yoshihide Naitou, Haruo Fujinaga, sei Tatsumi, Naoyuki Ibe (Div. Gastroenterology, Fukui Prefectural Hospital, Fukui, Japan)

^○Miyuki Sensui, Kiyofumi Ishii, Tokuhide Sugawara, Yushi Imai, Masahumi Nishio, Koji Takahashi, Chiaki Inagaki, Hiroshi Naito, Masashi Yabiki, tatsuya Fujimoto, Masamichi Obu, Mototsugu Fujimori, Yu Yoshida, Yoshihiro Koma, Ryosaku Azemoto (Dept. of Gastroenterology and Hepatology, Kimitsu Chuo Hospital, Chiba, Tokyo, Japan)

^○Taro Takahashi¹, Akihiko Murakami¹, Iichiro Akasaka¹, yoshihiko Amano¹, manami Miura¹, Syunsuke Honta², yasuhiro Abe², jyun Fushiya², Noriyuki Obara¹, Takashi Watanabe², osamu Kido², Atsushi Ikehata², sadahide Ono³, Tsutomu Sakuma³ (1.Iwate,Japan, 2.IWATE,Japan, 3.IWATE,Japan)

^○Kimihiro Hayashi, Yoshihiro Kaneta, Katsuyuki Sanga, Junji Hattori, Arisa Serizawa, Eiji Yamada, Seitaro Watanabe, Rika Kyo, Chikako Tokoro, Satoshi Hishiki, Ichiro Kawana (Saiseikai.Yokohamacity.Nanbu.Hospital,Yokohama City,Japan)