^○Hironao Matsuura, Junji Yoshino, Kazuo Inui, Takao Wakabayashi, Yoshiaki Katano, Hironao Miyoshi, Takashi Kobayashi, Toshihito Kosaka, Yuichiro Tomomatsu, Satoshi Yamamoto, Yasuki Narita, Yoshinori Tori, Tomoko Mori, Yuta Kurokawa, Chikao Hosokawa, Yuji Yusue, Takahiro Oya (Fujita Healrh Univ. Banbuntanehoutokukai Hospital, Gastroentelogy, Japan)

^○Katsushige Gon, Shigefumi Omuta, Iruru Maetani (Div. of Gastroenterology and Hepatology, Dept. of Internal Medicine, Japan)

^○Akira Imoto, Daisuke Masuda, Saori Onda, Tatsushi Sano, Takeshi Ogura, Michiaki Takii, Kazuhide Higuchi (2Nd Dept. of Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan)

^○Akinori Shimizu, Tamito Sasaki, Masahiro Serikawa, Tomoyuki Minami, Takashi Ishigaki, Yasutaka Ishii, Teruo Mouri, Satoshi Yoshimi, Tomofumi Tsuboi, Keisuke Kurihara, Yumiko Tatsukawa, Eisuke Miyaki, Kazuaki Chayama (Dept. of Gastroenterology and Metabolism,Hiroshima University Hospital,Hiroshima,Japan)

^○Yasukazu Fujii, Shinsuke Yahata, Hiroaki Sawai, Takayasu Itakura, Hogara Nishisaki (Hyogo Prefectural Kaibara Hospital,Japan)