^○Chiaki Sato, Haruhiro Inoue, Kazuya Sumi, Yohei Kitamura, Kuniyo Gomi, Michitaka Suzuki, Shinwa Tanaka, Haruo Ikeda, Manabu Onimaru, Mitsuo Saito, Hiroaki Ito, Masaaki Matsukawa (Digestive Disease Center, ,Showa University, Kototoyosu Hospital, Tokyo, Japan)

^○Michitaka Suzuki, Haruhiro Inoue, Hiroaki Ito, Mitsuo Saito, Manabu Onimaru, Haruo Ikeda, Shinwa Tanaka, Chiaki Sato, Yohei Kitamura, Kuniyo Gomi, Kazuya Sumi (Digestive Disease Center, Showa University Koto Toyosu Hospital, Japan)

^○Ga Won Song¹, Joo Young Cho¹, Weon Jin Ko¹, Ki Baik Park¹, Sung Pyo Hong¹, Kwang Hyun Ko¹, Won Hee Kim¹, Junhwan Yoo¹, Duk Hwan Kim¹, Suk Pyo Shin¹, Jun-Hyung Cho², Tae Hee Lee², Su Jin Hong³ (1.Institute of Gastroenterology, CHA Bundang Medical Center, CHA University, Korea, 2.Digestive Disease Center, Soonchunhyang University Hospital, Seoul, Korea, 3.Digestive Disease Center, Soonchunhyang University Hospital, Bucheon, Korea)

^○Yasutaka Kuribayashi, Akihiro Yamada, mitsuru Kaise (Dep. of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

^○Yuko Sogabe, Yuya Muramoto, Teppei Yoshikawa, Tomomi Ozawa, Shinpei Matsumoto, Takahiro Utsumi, Atsushi Matsumoto, Yoshiharu Mori, Chikage Ohno, Yoshihiro Nishida, Takao Mikami, Yasuhiro Matsunaga, Yukiko Miyamoto, Motoya Kitami, Hajime Honjo, Masahiko Kondo, Koji Nishikawa, Naoki Miyake, Chiharu Kawanami (Dept. of Gastroenterology,Otsu Red Closs Hospital, Otsu, Japan)