^○Uichiro Fuchizaki, Kazutoshi Yamada, Masashi Nishikawa (Dept. of Gastroenterology, Keiju Medical Center, Nanao, Ishikawa, Japan)

^○Masanori Nakashima¹, Takuji Iwashita³, Ichiro Yasuda² (1.Gifu Municipal Hospital, Dept. of Gastroenterology, Gifu, Japan, 2.Teikyo University Mizonokuchi Hospital, Department of Gastroenterology, Kawasaki, Japan, 3.Gifu University, First Department of Internal Medicine, Gifu, Japan)

^○Keiichi Hatamaru, Yoshito Uenoyama, Yukitaka Yamashita (Gastroenterology and Hepatology,Japan Red Cross Society Wakayama Medical Center, Wakayama, Japan)

^○Kazunori Nakaoka, Senju Hashimoto, Kentaro Yoshioka (Dept. of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, Aichi, Japan.)

^○Akira Kanamori, takashi Kumada, Seiki Kiriyama (Dept. of Gastroenterology, Ogaki Municipal Hospital, Gifu, Japan)

^○Tatsuhiro Yamazaki, Etsushi Ishida, Hiroshi Yamamoto (Dept. of Gastroenterology, Kurashiki Central Hospital, Okayama, Japan)

^○Yosuke Saragai, Shinichiro Muro, Kosaku Sakaguchi (Fukuyama City Hospital , Japan)

^○Ryunosuke Hakuta, Hiroyuki Isayama, Kazuhiko Koike (Dept. of Gastroenterology Graduate School of Medicine The University of Tokyo, Japan)

^○Masato Nakamura, Toshio Tsuyuguchi, Osamu Yokosuka (Dept. of Gastroenterology and Nephrology, Graduate School of Medicine, Chiba University, Chiba, Japan)

^○Toshiyasu Shiratori, Nobuto Hirata, So Nakaji (Dept. of Gastroenterology, Kameda Medical Center , Chiba, Japan)

^○Hirofumi Tsugeno, Koji Takemoto, Shigeatsu Fujiki (Dept. of Gastroenterology, Tsuyama Chuo Hospital, Tsuyama, Japan)

^○Hideaki Kawabata, Koichiro Mandai, Koji Uno (Dept. of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan)