^○Yousuke Abe¹, Takuya Inoue¹, Naoki Yorifuji¹, Munetaka Iguchi¹, kaori hujiwara¹, Taisuke Sakanaka¹, Toshihiko Okada¹, Kazuki Kakimoto¹, Sadaharu Noda¹, ken kawakami¹, Toshihisa Takeuchi¹, Kazuhide Higuchi¹, Hirosi Akutagawa², Yutaro Egashira², Yoshinobu Hirose² (1.The Second Dept. of Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan, 2.The Department of Pathology, Osaka Medical College, Takatsuki, Osaka, Japan)

^○Tsuyotoshi Tsuji, Hajime Ishii, Yoshie Sugawara, Kenichi Takahasi, Tatsuya Yoshida, Hideo Oono, Satoko Tsuda, Kunio Nakane, Mituro Chiba, Masafumi Komatsu (Gastroenterology, Akita City Hospital, Akita, Japan)

^○Yuko Hiraga, Maiko Hanada, Ayami Fukiage, yuno omura, Kana Tojo, ichiro otani, Tomoki Hiramoto, Chiyuki Watanabe, Masaaki Sumioka (Dept. of Endoscopy, Hiroshima Prefectural Hospital, Hiroshima, Japan)

^○Kenta Hamada¹, Noriya Uedo¹, Thorlacius Henrik², Yoji Takeuchi¹, Toth Ervin³, Ryu Ishihara¹ (1.Dept. of Gastrointestinal Oncology, Osaka Medical Center For Cancer and Cardiovascular Diseases, Osaka , Japan, 2.Surgery, Dep. of Clinical Sciences, Malmo, Skane University Hospital, Lund University, Malmo, Sweden, 3.Gastroenterology, Dep. of Clinical Sciences, Malmo, Skane University Hospital, Lund University, Malmo, Sweden)

^○hideaki ritsuno, Taro Osada, naoto sakamoto, Yuzuru Tajima, hirofumi fukushima, takashi murakami, hiroya ueyama, kenshi matsumoto, Tomoyoshi Shibuya, akihito nagahara, Tatsuo Ogihara, sumio watanabe (Dept. of Gastroenterology, Juntendo University School of Medicine, Tokyo,Japan)