^○Kazuhiro Haraguchi¹, Mayuko Iwata¹, Hiroshi Matuzaka¹, Ryoko Naruo¹, Chihoko Aratono¹, Hiroko Ikeda¹, Kenichi Nishijima¹, Norimoto Nakamura¹, Miyuki Kaneki¹, Yoshiharu Chijiiwa¹, Shinji Kono² (1.Div. of Gastroenterology, Harasanshin Hosp., Fukuoka, Japan, 2.Div. of Clinical Pathology, Harasanshin Hosp., Fukuoka, Japan)

^○Takako Endo¹, Kazuhiro Atsukawa¹, Shungo Goto¹, YOICHI TAKIMOTO¹, Jun Arimoto¹, Akito Iwasaki¹, Shogo Yanagisawa¹, TADAHIKO SHIBA¹, TAKASHI SAKAGUCHI¹, Hisao Takahashi¹, Takashi Nonaka² (1.Dept. of Gastroenterology, Hiratsuka City Hospital, Hiratsuka, Japan, 2.Department of Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan)

^○Masahide Fukuda¹, Tetsuya Ueo¹, Hirotoshi Yonemasu², Kazumi Togo¹, Yuka Yanai¹, Terumitsu Motomura¹, Hideyasu Nagamatsu¹, Ryoichi Narita¹, Yoko Kakisako², Tetsuya Ishida¹, Kazunari Murakami³ (1.Dept. of Gastroenterology, Oita Red Cross Hospital, Oita, Japan, 2.Department of Pathology, Oita Red Cross Hospital, Oita, Japan, 3.Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan,)

^○Kazumi Togo¹, Tetsuya Ueo¹, Hirotoshi Yonemasu², Masahide Fukuda¹, Yuka Yanai¹, Yoko Kakisako¹, Ryoichi Narita¹, Tetsuya Ishida¹, Kazunari Murakami³ (1.Oita Red Cross Hospital, Faculty of Gastroenterology, Oita, Japan, 2.Oita red cross hospital, faculty of pathological diagnosis, Oita, Japan, 3.Oita University faculty of medicine, department of gastroenterology, Oita, Japan)

^○Yoshiaki Sugiyama, takashi Kumada, Seiki Kiriyama, Makoto Tanikawa, Yasuhiro Hisanaga, Hidenori Toyota, Akira Kanamori, Shusuke Kitabatake, Toshihumi Tada, Takanori Ito, Ryohei Hasegawa, Yusuke Satta, Shinya Yokoyama (Dept. of Gastroenterology, Ogaki Municipal Hospital, Gifu, Japan)