^○Akane Yamabe, Atsushi Irisawa, Goro Shibukawa, Yoko Abe, Koh Imbe, Koki Hoshi, Ryo Igarashi (Dept. of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Japan)

^○Manabu Kawai¹, Yoshiki Hirooka², Hiroki Kawashima¹, Eizaburo Ohno¹, Hiroyuki Sugimoto¹, Daijuro Hayashi¹, Takamichi Kuwahara¹, Tomomasa Morishima¹, Hiroki Suhara¹, Tomoaki Takeyama¹, Takeshi Yamamura², Kazuhiro Furukawa¹, Kohei Funasaka², Masanao Nakamura¹, Ryoji Miyahara¹, Hidemi Goto^1,2 (1.Dept. of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan, 2.Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan)

^○Mitsuru Fujita, Takao Itoi, Atsushi Sofuni, Takayoshi Tsuchiya, Kentaro Ishii, Syuuziro Tsuji, Nobuhito Ikeuchi, Junko Umeda, Reina Tanaka, Ryousuke Tonozuka, Mitsuyoshi Honjo, Shuntaro Mukai, Fuminori Moriyasu (Dept. of Gastroenterology and Hepatology, Tokyo Medical University 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo 160-0023, Japan)

^○Hiroshi Matsubara, Fumihiro Urano, motokazu Fujita, Takehito Naitoh, Masahiro Yamada, Hideko Yamamoto, Kenta Yamamoto, Hirotaka Suzuki, Masakatsu Yoshikawa, Kunio Kataoka, Yuki Kinoshita, Emiko Hida, Kazuhiro Yamamoto, Shozo Okamura (Dept. of Gastroenterology, Toyohashi Municipal Hospital, Aichi, Japan)

^○Toshifumi Kin, Akio Katanuma, Hiroyuki Maguchi (Center For Gastroenterology Teine-Keijinakai Hospitalgastroe, Japan)