^○Ayumi Ito, BUNEI IIZUKA, keiko shiratori, Tomoko Kuriyama, Teppei Omori, Maria Yonezawa (Institute of Gastroenterology, Tokyo Women'S Medical University Hospital, Tokyo, Japan)

^○Takako Miyazaki, Toshiyuki Sato, Mikio Kawai, Junsuke Oku, Kouji Kamikozuru, Misaki Nakamura, Youko Yokoyama, Tetsuya Takagawa, Masaki Iimuro, Nobuyuki Hida, Kazutoshi Hori, Shiro Nakamura (Div. of Internal Medicine Dept. of Inflammatory Bowel Disease, Hyogo College of Medicine, Hyogo, Japan)

^○Takumi Fukuchi, satoshi Ubukata, Akihiko Okada (Gastroenterology and Hepatoroly, Osakafu Saiseikai Nakatsu Hospital, Japan)

^○Kousaku Kawashima¹, Shunji Ishihara¹, Takafumi Yuki², Mai Fukunaga¹, Noritsugu Yamashita¹, Hiroki Sonoyama¹, Yasumasa Tada¹, Ryusaku Kusunoki¹, Akihiko Oka¹, Nobuhiko Fukuba¹, Naoki Oshima¹, Ichiro Moriyama³, Yoshikazu Kinoshita¹ (1.Second Dept. of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan, 2.Division of Endoscopy, Shimane University Hospital, Izumo, Japan, 3.Cancer Center, Shimane University Hospital, Izumo, Japan)

^○Jun Seishima, Youhei Marukawa, Masatoshi Yamato, Masaki Miyazawa, Kiichiro Kaji, Takuya Komura, Hajime Ota, Masashi Unoura (National Hospital Organization Kanazawa Medical Center,Ishikawa,Japan)