^○Maki Miyakawa, Masanao Nasuno, Satoshi Motoya (Sapporo-Kosei General Hospital, Sapporo, Japan)

^○Kentaro Ikeya¹, Ken Sugimoto², Hiroyuki Hanai¹ (1.Centre For Gastroenterology and Inflammatory Bowel Disease Research, Hamamatsu South Hospital, Hamamatsu, Japan, 2.First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan)

^○Mari Arai¹, Makoto Naganuma², Takanori Kanai¹ (1.Div. of Gastroenterology and Hepatology, Dept. of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, 2.Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyp, Japan)

^○Miyuki Miyamura, Ken Takeuchi, Yasuo Suzuki (Div. of Gastroenterology and Hepatology,Dept. of Internal Medicine Sakura Medical Center,Toho University, Japan)

^○Shiho Takashima¹, Sakiko Hiraoka¹, Hiroyuki Okada² (1.Dept. of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, 2.Department of Endoscopy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan)

^○Taku Kobayashi, Masaru Nakano, Toshifumi Hibi (Center For Advanced Ibd Research and Treatment, Kitasato University Kitasato Institute Hospital, Japan)

^○Seiko Hayashi, Fumihiko Urushibara, Shinei Kudo (Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan)

^○Kazuhiko Uchiyama, Tomohisa Takagi, Yuji Naito (Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan)

^○Shigeki Banba¹, Tomoyuki Tsujikawa², Akira Andoh¹ (1.Div. of Gastroenterology, Dept. of Internal Medicine, Shiga Univ. of Medical Science, Otsu, Shiga, Japan, 2.Department of Internal Comprehensive Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan)

^○Takayuki Yamamoto, Satoru Umegae, Kohichi Matsumoto (Ibd Center, Yokkaichi Hazu Medical Center, Japan)

^○Kenichi Yoshikawa, Hirokazu Sato, Ryota Hokari (Dept. of Internal Medicine, National Defense Medical College, Saitama, Japan)

^○Toru Yoshimura¹, 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)