^○Satoshi Yamamoto, Kazuo Inui, Junji Yoshino, Takao Wakabayashi, Yoshiaki Katano, Hironao Miyoshi, Takashi Kobayashi, Toshihito Kosaka, Yuichiro Tomomatsu, Hironao Matsuura, Yasuki Narita, Yoshinori Tori, Tomoko Mori, Yuta Kurokawa, Chikao Hosokawa, Yuji Yusue, Takahiro Oya (Dept. of Gastroenterology, Second Teaching Hospital, Fujita Health University. Nagoya, Aichi, Japan)

^○Yasutaka Yamada, Masato Kinoshita, Ayaka Sasaki, Katsuhide Tanaka, Tomoo Yoshie, Junko Hori, Tsuyoshi Sanuki (Dept. of Gastroenterology, Kita-Harima Medical Center, Hyougo Japan)

^○Yoshikatsu Nomura¹, Hiroyuki Watanabe¹, Akihiro Tanaka¹, Teruyuki Ueda¹, Hisato Matsuda¹, Taku Sanada¹, Kazuo Notsumata¹, Daisyu Toya¹, Nobuyoshi Tanaka¹, Hideki Miyata², Koji Yoshida³, Toshiyasu Iwao⁴ (1.Fukuikensaiseikai Hospital, Fukui, Japan, 2.Ehimekenritsu central hospital, Ehime, Japan, 3.Kawasaki medical school , Okayama, Japan, 4.Aizu central Hospital, Fukushima, Japan)

^○Nao Fujimori¹, Ken Kawabe¹, Fusako Kojima¹, Akifumi Nozaki¹, Nobito Higuchi¹, Tsuyoshi Yoshimoto¹, Makoto Nakamuta¹, Naohiko Harada¹, Tetsuhide Ito² (1.Dept. of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan, 2.Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan)

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