^○Yasutaka Morimoto¹, Katsuyuki Dainaka¹, Shun Takayama¹, Rieko Mukai¹, Nobuhisa Yamada¹, Yutaka Isozaki¹, Yasuyuki Nagao¹, Hirokazu Oyamada¹, Hiroaki Kitae², Nobuaki Yagi², Takahiro Kato³ (1.Dept. of Gastroenterology, Matsushita Memorial Hospital, Osaka, Japan, 2.Department of Gastroenterology, Murakami Memorial Hospital, Gifu, Japan)

^○Koji Takemoto, Shotaro Okanoue, Eriko Yasutomi, Tomoko Sunami, Shohei Oka, Hisashi Ishikawa, Daisuke Kawai, Ryuta Takenaka, Hirofumi Tsugeno, Shigeatsu Fujiki (Digestive Endoscopy Center, Tsuyama Central Hospital, Okayama, Japan)

^○Hiroyuki Aoyagi¹, Naoyuki Ibe¹, Manami Utsunomiya¹, Takuto Nosaka¹, Yu Akazawa¹, Yoshihide Naitou¹, Haruo Fujinaga¹, Yoshiaki Hayashi¹, Kenkei Hasatani¹, sei Tatsumi¹, Yasuharu Kaizaki² (1.Dept. of Gastroenterology, Fukui Prefectural Hospital, Fukui, Japan, 2.Department of Clinical pathology, Fukui Prefectural Hospital, Fukui, Japan)

^○Narihiro Shibukawa, Yukihiro Kusumoto, Mari Ito, Nobuyuki Tatsumi, Akira Kaneko (Div. of Gastroenterology, Japan)