^○Tomoki Fujita¹, Kenichi Utano², Eriko Waga¹, Daiki Nemoto², Noriyuki Isohata², Shinichi Katsuki¹, Shungo Endo², Kazutomo Togashi² (1.Dept. of The Center of Gastroenterology, Otaru Ekisaikai Hospital , Japan, 2.Fukushima Medical University, AIZU Medical Center, Coloproctology)

^○Teppei Omori, Shinichi Nakamura, Tomoko Kuriyama, Ayumi Ito, Maria Yonezawa, BUNEI IIZUKA, keiko shiratori (Internal Medicine, Institute of Gastroenterology, Tokyo Women'S Medical University, Tokyo, Japan)

^○Junichi Sato¹, Osamu Watanabe¹, Masanao Nakamura¹, Takeshi Yamamura², Arihiro Nakano¹, Hiroshi Oshima¹, Yoshiki Hirooka², Takafumi Ando¹, Hidemi Goto^1,2 (1.Nagoya University Graduate School of Medicine, Dept. of Gastroenterology and Hepatology,Nagoya,Japan, 2.Nagoya University Hospital, Department of Endoscopy,Nagoya,Japan)

^○Yuriko Onozawa, Osamu Handa, Osamu Dohi, Tetsuya Okayama, Naohisa Yoshida, Kazuhiro Katada, Kazuhiro Kamada, Kazuhiko Uchiyama, Tsuyoshi Ishikawa, Tomohisa Takagi, Hideyuki Konishi, Yuji Naito, Yoshito Ito (Dept. of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan)