^○Yusuke Higuchi, Koji Nakamichi, Taro Abe, Keisuke Ooiwa, Yuji Tanigawa, Kanae Shinozaki, Sinji Okabayashi, Yuta Masutani, Takeshi Ninosaka, Yoshihisa Fukuda (Fukuoka Tokushukai Medical Center, Japan)

^○Iichiro Akasaka¹, yoshihiko Amano¹, Taro Takahashi¹, manami Miura¹, Akihiko Murakami¹, shinn Matsumoto², yasuhiro Abe², Syunsuke Honta², jyun Fushiya², Noriyuki Obara², osamu Kido², Atsushi Ikehata² (1.Iwate Prefectural Cyuou Hospital, Morioka, Iwate, Japan, 2.Iwate prefectural cyuou hospital, Morioka, Iwate, Japan)

^○Sakuma Takahashi, Shigenao Ishikawa, Masaya Ishida, Tomo Kagawa, Sakiko Kuraoka, Ichiro Sakakihara, Koichi Izumikawa, Kumiko Yamamoto, Shigetomi Tanaka, Mihoko Matsuura, Masaki Wato, Toshimi Hasui, Tomoki Inaba (Dept. of Gastroenterology, Kagawa Prefectural Central Hospital, Kagawa, Japan)

^○Dai Tamaki, Tomohiro Yamaguchi, Atsufumi Kashiwa, Yosuke Fujinaga, Kengo Takimoto, Kiichi Matsuyama (Digestive Disease Center, Ijinkai Takeda General Hospital, Kyoto, Japan)

^○Koji Yamamoto, Shinpei Shirai, syunshuke Yamaguchi, Shinichi Ogata (Saga-Ken Medical Centre Koseikan, Saga,Japan)