^○Eikichi Ihara, keita Fukaura, Kazuhiko Nakamura (Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Japan)

^○Naoki Oshima, Norihisa Ishimura, Yoshikazu Kinoshita (Dept. of Internal Medicine Ii, Shimane University School of Medicine, Shimene, Japan)

^○Kohei Hosoda, Kazuo yashima, Yoshikazu Murawaki (Div. of Medicine and Clinical Science, Faculty of Medicine, Tottori Univ., Yonago, Japan)

^○Shigenori Yamada (Dept. of Gastroenterology, Iiyama Red Cross Hospital, Nagano, Japan)

^○Hideaki Kinugasa, Kazuhiro Nouso, Kazuhide Yamamoto (Dept. of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan)

^○Daijuro Hayashi¹, Yoshiki Hirooka², Hidemi Goto^1,2 (1.Dept. of Gastroenterology, Nagoya University Graduate School of Medicine, Nagoya, Japan, 2.2. Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan.)

^○Ryohei Hayashi^1,3, Kiichiro Tsuchiya², Mamoru Watanabe³ (1.Dept. of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan, 2.Dept. of Advanced Therapeutics for Gastrointestinal Diseases, Tokyo Medical and Dental University, Tokyo, Japan, 3.Dept. of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan)

^○Yoshihito Nakagawa, Naoki Omiya, Ichiro Hirata (Dep. of Gastroenterology, Sch. of Med. Fujita Health Univ., Toyoake, Japan)

^○Hironori Aoki^1,2,3, Hiroo Yamano², Hiromu Suzuki¹ (1.Dept. of Molecular Biology, Sch. of Med. Sapporo Medical Univ., Sapporo, Japan, 2.Dept. of Gastroenterology, Akita Red Cross Hospital, Akita, Japan, 3.Dept. of Gastroenterology, Sapporo Shirakaba-dai Hospital, Sapporo, Japan)

^○Kazuya Inoki, Seiichiro Abe, Yutaka Saito (Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan)

^○Kohei Funasaka¹, Ryoji Miyahara², Hidemi Goto^1,2 (1.Dept. of Endoscopy, Nagoya University Hospital, Nagoya, Japan, 2.Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan)

^○Takumi Onoyama, Kazuya Matsumoto, Yoshikazu Murawaki (Dept. of Gastroenterology, Sch of Med. Tottori Univ, Yonago, Japan)

^○Tooru Niihara¹, SADAO TANAKA², KOSUKE IWAKI¹ (1.Dept. of Gastroenterology, Nanpuh Hospital, Kagoshima, Japan, 2.Dept. of Pathology, Nanpuh Hospital, Kagoshima, Japan)

^○Yoshimasa Kubota, Hiroshi Kawakami, Naoya Sakamoto (Dept. of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan)

^○Rintaro Mikata, takeshi ishihara, Osamu Yokosuka (Dept. of Gastroenterology and Nephrology, Chiba University Graduate School of Medicine, Chiba, Japan)

^○Shinichi Takano, Mitsuharu Fukasawa, Nobuyuki Enomoto (First Dept. of Internal Medicine, Yamanashi Univ., Yamanashi, Japan)