^○Ichiro Sakakihara, Masaya Ishida, Tomo Kagawa, Sakiko Kuraoka, Koichi Izumikawa, Kumiko Yamamoto, Sakuma Takahashi, Shigetomi Tanaka, Mihoko Matsuura, Shigenao Ishikawa, Masaki Wato, Toshimi Hasui, Tomoki Inaba (Dept. of Gastroenterology, Kagawa Prefectural Central Hospital, Japan)

^○Maiko Murata, taro Oshima, Saki Kitano, Eiji Kimura, Fumihiko Sano, Eri Yoshida, Ryotaro Uema, Katsuhiko Sato, Aiko Himeno, Akinori Shimayoshi, Eri Tsumano, Mai Horie, Shinjiro Yamaguchi, Masanori Miyazaki, Hideki Miyatake, Satoshi Egawa, Masahide Oshita (Osaka Police Hospital, Osaka, Japan)

^○Koichiro Tsutsumi, Hironari Kato, Daisuke Uchida, Yutaka Akimoto, Takeshi Tomoda, Kazuyuki Matsumoto, Yasuhiro Noma, Naoki Yamamoto, Shigeru Horiguchi, Hiroyuki Okada, Kazuhide Yamamoto (Dept. of Gastroenterology and Hepatology, Okayama University Hospital, Okayama, Japan)

^○Hisashi Hatanaka, Tomonori Yano, Norikatsu Numao, Kensuke Yokoyama, Jun Ushio, Tsuyoshi Tomiyama, Daiki Nemoto, Kohei Ono, Yasushi Miyata, Masato Tsunoda, Chihiro Iwashita, Kiichi Tamada, Hironori Yamamoto (Dept. of Gastroenterology, Jichi Medical University., Tochigi, Japan)

^○Yoshinori Iwata¹, Kunihiro Hasegawa¹, Ryo Takata¹, Tomoko Aoki¹, Kazunori Yo¹, Akio Ishii¹, Kenji Hashimoto¹, Tomoyuki Takashima¹, Yoshiyuki Sakai¹, Nobuhiro Aizawa¹, Naoto Ikeda¹, Hironori Tanaka¹, Hirayuki Enomoto¹, Masaki Saito¹, Hiroko Iijima¹, Mikio Kawai², Shiro Nakamura², Yoshio Jinno³, Nobuyasu Takada⁴, Shuhei Nishiguchi¹ (1.Div. of Hepatobiliary and Pancreatic Diseases, Dept. of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan, 2.Division of Inflammatory Bowel Diseases, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan, 3.Daido clinic, Osaka, Japan, 4.Takaishi Kamo Hospital, Surgery, Osaka, Japan)