^○Kazuyo Fujimoto, Kenichi Hayashi, Bensuleiman Yahya, Kazunari Sasaki, Junya Ando, Masao Hanafusa, Shiei Yoshida, Takuo Kado, Yuichi Harano, Satoshi Myojo, Takatoshi Nakashima, Shunichi Yoshida, Shigeaki Sawai (Dept.Of Gastroenterology,Akashi Medical Center,Hyogo,Japan)

^○Masayuki Nishino, Yasushi Nakamura, Koudai Kuriyama, Youhei Kida, Akira Hibino, Youichi Yamada (Dept. of Internal Medecine, Kainan Medical Center, Kainan, Japan)

^○Chieko Kakihara¹, Daisuke Asaoka¹, akihito nagahara¹, Taro Osada¹, naoto sakamoto¹, Tomoyoshi Shibuya¹, Takahumi Hiromoto¹, Syoki Okubo¹, Tsutomu Takeda¹, Yuzuru Tajima¹, Hiroaki Saitou¹, Tomonori Aoyama¹, Takashi Yao², sumio watanabe¹ (1.Dept. of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan, 2.Department of pathology, Juntendo University School of Medicine, Tokyo, Japan)

^○Hiroki Shimoda, Rika Nakano, Hisato Maekawa, Kenji Hirano, Yasusi Tanoue (Jcho.Tokyo Takanawa Hospital.,Tkyo,Japan)

^○Yuji Takahash¹, Takehiko Sugie², Kengo Ogawa², Tomomichi Matushita², Yoichirou Ito², Kazuo Nagura², Goto Hiroo³ (1.Div.Of Endoscopy,Dept.Of Gastroenterology,Gifu Red Cross Hospital,Gifu,Japan, 2.dept.of Gastroenterology,Gifu Red Cross hospital,Gifu,Japan, 3.Dept.of Radiology,Gifu Red Cross hospital,Gifu,Japan)