^○Hiroyuki Inoue¹, Reiko Yamada¹, Shunsuke Tano², Kenichiro Nishikawa¹, Takashi Sakuno¹, Tetsuro Harada¹, Takashi Kitade², Yasuhiko Hamada², Masaki Katsurahara², Kyosuke Tanaka², Noriyuki Horiki², Yoshiyuki Takei¹ (1.Dept. of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan, 2.2) Department of Endoscopic Medicine, Mie University Graduate School of Medicine. Tsu Japan)

^○Kensuke Hamada, Shunya Iseki, Takahiro Inoue, Masamichi Arao, Eri Tokunaga, Yuka Sumino, Hiroyuki Yoshida, Kanna Adachi, Yukari Shimada, Motohito Hayashi, Toshinao Itani, Jun Mimura (Nishi-Kobe Medical Center, Kobe, Japan)

^○Nobuhiro Hieda¹, Takamitsu Sato¹, Kazuo Hara¹, Nobumasa Mizuno¹, Susumu Hijioka¹, Hiroshi Imaoka¹, Masahiro Tajika², Tsutomu Tanaka², Makoto Ishihara², Tatsuji Yogi¹, Eiji Tsutsumi¹, Toshihisa Fujiyoshi², Tsukasa Yoshida¹, Nozomi Okuno¹, Yasumasa Niwa², Kenji Yamao¹ (1.Dept. of Gastroenterology, Aichi Cancer Center Hospital, Japan, 2.Dept. of Endoscpoy, Aichi Cancer Center Hospital)

^○Takashi Kaneko¹, Kazuya Sugimori¹, Atsuyoshi Kubo¹, Ayako Takeda¹, Yuniba Ishii¹, Eri Kameta², Haruo Miwa², Tomohiro Ishii¹, kazushi numata¹, Katsuaki Tanaka¹, Shin Maeda² (1.Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan, 2.Department of Gastroenterology, Yokohama City University, Graduate School of Medicine, Yokohama, Japan)

^○Toshitaka Sakai, Wataru Sato, Takashi Goto, Kouichi Miura, Shigetoshi Ohshima, Takahiro Dohmen, Tomomi Shibuya, Masanari Sekine, Mitsuru Chiba, Ryo Kanata, Shinichirou Minami, Suguru Arata, Akashi Fujita, Naohisa Matsuzawa, Atsusi Saito, Hirohide Ohnishi (Dept. of Gastroenterology, Akita University School of Medicine, Akita, Japan)