^○Ken Konishi, Masaki Okuyama, Kazuya Hiraoka, Tomo Nakagawa, Chiwan Kim, Shunji Endo, Terumasa Yamada, Junichi Nishijima (Dept. of Gastroenterological Medicine, Higashiosaka City General Hospital, Higashiosaka, Japan)

^○Yusuke Yagawa, Shinei Kudo, Yuichi Mori, Hideyuki Miyachi, Shunpei Mukai, Eiji Hidaka, Fumio Ishida (Digestive Disease Center,Sch of Med Showa Univ,Kanagawa,Japan)

^○Ryoji Tatsumi¹, Ryu Sato¹, Yu Matsubara¹, Koji Yoshizaki¹, Jun Sakamoto¹, Hisato Amizuka¹, Keisuke Kimura¹, Tomoyuki Ohta¹, Shigeru Furukawa², Atsuo Maemoto² (1.Sapporo Higashi Tokushukai Hospital, Gastroenterology Center ,Sapporo, Japan, 2.Sapporo Higashi Tokusyukai Hospital,IBD center , Sapporo,Japan)

^○Kazunori Takahashi^1,2, Yoichi Yamamoto¹, Koji Shimaya^1,2, Satoko Itoh¹, Norihiro Hanabata^1,2, Kosuke Kanazawa¹, Hiroshi Numao¹, Masaki Munakata¹, Shinsaku Fukuda² (1.Div. of Gastroenterology, Aomori Prefectural Hospital, Aomori, Japan, 2.Dept. of Gastroenterology and Hematology, Hirosaki Univ., Graduate Sch. of Med., Aomori, Japan)

^○Rio Takezawa, Takahisa Kayahara, Hiroshi Yamamoto, Yoshiyuki Kiguchi, Mami Kobayashi, Shintaro Hino, Tatsuhiro Yamazaki, Kaori Sugiura, Yosuke Mitani, Kyoko Hamaguchi, Yuichi Shimodate, Akira Doi, Yoshie Kiyosuke, Naoyuki Nishimura, Etsushi Ishida, Hirokazu Mori, Kazuhiro Matsueda (Dept. of Gastroenterology, Kurashiki Central Hospital,Okayama,Japan)