^○Koki Hoshi, Atsushi Irisawa, Goro Shibukawa, Yoko Abe, Koh Imbe, Akane Yamabe, Ryo Igarashi (Fukushima Medical University Aizu Medical Center Dept. of Gastroenterology, Japan)

^○Ayaka Sasaki¹, Masato Kinoshita¹, Hideki Sakai¹, Yasutaka Yamada¹, Katsuhide Tanaka¹, Tomoo Yoshie¹, Junko Hori¹, Tsuyoshi Sanuki¹, Hidehiro Sawa², Daisuke Kuroda², Maki Kanzawa³, Yoh Zen³ (1.Dept. of Gastroenterology, Kita-Harima Medical Center,Hyogo,Japan, 2.Department of Surgery Digestive ,Kita-harima Medical Center,Hyogo,Japan, 3.Department of Pathology ,Kita-harima Medical Center,Hyogo,Japan)

^○Ayako Ito, Masayo Motoya, Hideki Wkasugi, Masahiro Shitani, Noriyuki Akutu, Motohisa Yamamoto, Hideyasu Takagi, Shigeru Sasaki, Yasuhisa Shinomura (Dept. of Gastroenterology,Rheumatology and Clinical Immunology, Japan)

^○Yuuki Ikeda¹, Hiroyuki Hisai¹, Tasuku Hirako¹, Yutaka Koshiba¹, Etsu Miyazaki², Shogo Miura³ (1.Dept. of Gastroenterology, Japan, 2.Dept. of Internal Medicine, 3.Dept. of Hematology and Oncology, Sapporo Medical Univ. Sch. of Med. Sapporo, Japan)

^○Jun Okazaki, Akira Fukuya, Kaizo Kagemoto, Yoshifumi Takaoka, Yoshihiko Miyamoto, Yasuyuki Okada, sayo Matsumoto, Yasuhiro Mitsui, Tatsunao Sueuchi, Kumiko Tanaka, Yasuteru Fujino, Toshi Takaoka, Shinji Kitamura, Hiroshi Miyamoto, Naoki Muguruma, Toshiya Okahisa, Tetsuji Takayama (Tokushima University Hospital Gastroenterology, Japan)