^○Yuya Tsukui, Tomoyoshi Uetake, Fumihiko Iwamoto, Shoji Kobayashi, Takashi YOshida, Yukiko Asakawa, Tatsuya Yamaguchi, Tadashi Sato, Nobuyuki Enomoto (The 1St Dept. of Internal Medicine. Univercity of Yamanashi. Yamanashi,Japan)

^○Mio Matsumoto¹, Shinji Yoshii¹, Sachiko Shimizu¹, Yasuyuki Kawamoto¹, Shin Haba¹, Akiko Yokoyama¹, Nobuaki Akakura¹, Mototsugu Kato² (1.Sapporo Medical Center NTT EC, Japan, 2.Division of Endoscopy, Hokkaido University Hospitai)

^○Hajime Takatori^1,2, Tomoyuki Hayashi¹, Takashi Kagaya¹, Takeshi Urabe², Shuichi Kaneko¹ (1.Div.Of Gastroenterology,Kanazawa University Hospital,Kanazawa,Japan, 2.Div.of Gastroenterology,Public Central Hospital of Matto Ishikawa,Hakusan,Japan)

^○Akihiro Yamauchi, Shinei Kudo, Hideyuki Miyachi, Hanako Shishido, Atsushi Katagiri, Takemasa Hayashi, Kunihiko Wakamura, Toyoki Kudo, Tomokazu Hisayuki, Masashi Misawa, Yuichi Mori, YASUHARU MAEDA, Kenta Igarashi, Kazuki Kato, Yushi Ogawa (Digestive Disease Center, Showa University Northern Yokohama Hospital,Kanagawa, Japan)

^○Kazuyuki Ono¹, Akihiro Shinji², Kazuhiro Watanabe¹, Masakazu Kobayashi¹, Hiroshi Ota¹, Kenji Mukawa¹ (1.Div.Of Gastroenterology,Nagano,Japan, 2.Suwa Red Cross Hospital, Dept. of Oncology)