^○Takashi Ueda, Motoyo Ito, Yuki Maegawa, Masashi Nakamura, Eri Tanaka, Osamu Tatsumi, Fumitaka Terabe, Hiroyuki Fukui (Dept. of Gastroenterology and Hepatology,Yao Municipal Hospital,Osaka,Japan)

^○Tomoaki Yamasaki, Kanako Kikukawa, Akie Kimura, Akinobu Nakata, Masahumi Yamamura, Takehisa Suekane, Eiji Sasaki, Koji Sano, Kenji Watanabe, Hiroko Nebiki (Div. of Gastroenterology, Osaka City General Hospital, Osaka, Japan)

^○Mamoru Takenaka, Yoshifumi Arisaka, Koudai Yamanaka, Seiji Fujigaki, Yuichi Hirata, Takeshi Ezaki, Yousuke Yagi, Takashi Nakagawa, Hiroshi Ogawa, Takao Iemoto, Arata Sakai, Takashi Kobayashi, Hideyuki Shiomi, Yasuhiro Okabe, Hiromu Kutsumi, Takeshi Azuma (Div. of Gastroenterology, Dept. of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan)

^○Eiji Miyata, Kosuke Okuwaki, Mitsuhiro Kida, Yusuke Kawaguchi, Rikiya Hasegawa, Takaaki Matsumoto, Takahito Mishima, Toru Kaneko, Hiroshi Yamauchi, Shiro Miyazawa, Tomohisa Iwai, Miyoko Takezawa, Maya Watanabe, Hiroshi Imaizumi, Wasaburo Koizumi (Dept. of Gastroenterology, Kitasato Univ, Kanagawa, Japan)

^○Ryuhei Nishino¹, Mariko Yoshida¹, Eiki Matsushita¹, Masashi Unoura^1,2 (1.Dept. of Internal Medicine, Hakui Public Hospital, Ishikawa, Japan, 2.National Hospital Organization Kanazawa Medical Center)