^○Daisuke Asaoka, akihito nagahara, sumio watanabe (Dept. of Gastroenterology, University of Juntendo, School of Medicine, Tokyo, Japan)

^○Hiroyuki Kawabata, Hiroki Yukimoto, Masatoshi Aoki (Dept. of Internal Medicine, Saiseikai Matsusaka General Hospital, Mie, Japan)

^○Yosuke Toya, norihiko Kudara, Takayuki Matsumoto (Div. of Gastroenterology, Dept. of Internal Medicine, School of Medicine, Iwate Medical University. Iwate, Japan)

^○Ryota Sada, Akira Sekikawa, Takanori Maruo (Dept. of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Japan)

^○Takeshi Sawada, Hiromi Kataoka, Takashi Joh (Dept. of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan)

^○Waku Hatta, Katsunori Iijima, Tomoyuki Koike (Div. of Gasroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan)

^○Maki Ayaki¹, Yuu Hatano³, Ken Haruma² (1.Dept. of Gastroenterology and Neurology, Med. Kagawa Univ., Kagawa, Japan, 2.Department of Gastroenterology, Kawasaki Medical School, 3.Mitsugi general Hospital)

^○Takahisa Murao, Motoyasu Osawa, Tomoari Kamada (Div. of Gastroenterology, Dept. of Internal Medicine, Kawasaki Medical School, Kurashiki, Japan)

^○Sunao Shimada, Tetsuya Tanigawa, Toshio Watanabe (Dept. of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan)

^○Yoshinori Tori, Yuta Kurokawa, Takashi Kobayashi (Dept. of Internal Medicine Second Teaching Hospital Fujita Health University School of Medicine Nagoya Japan)

^○Takayuki Kato, Hiroki Endo, Atsushi Nakajima (Dept. of Gastroenterology and Hepatology, Yokohama City Univ, Yokohama, Japane)

^○Rinzaburo Matsuura¹, Masanao Nakamura¹, 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)

^○Yusuke Okuyama¹, nana Ishimura², Norimasa Yoshida¹ (1.Dept. of Gastroenterology, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan, 2.Department of Nephrology, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan)

^○Yoichiro Nuki, Junji Umeno, Motohiro Esaki (Dept. of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.)

^○Kenji Yamazaki¹, Tomoaki Shinohara², Seiji Shimizu³ (1.Dept. of Gastroenterology, Gifu Prefectural General Medical Center, Gifu, Japan, 2.Dept. of Gastroenterology, Saku Medical Center, Saku, Japan, 3.Dept. of Gastroenterology, Osaka General Hospital of West Japan Railway Company, Osaka, Japan)