^○Rindo Ishii, Suguru Mizuno, Yuri Hanaoka, Tsuyoshi Fukumoto, Tadahiro Yamasaki, Aya Murakawa, Toru Arano, Daisuke Tagami, Jun Tashiro, Kazuaki Tejima, Jun Miwa, Masahiro Arai (Toshiba Hospital, Dept. of Gastroenterology,Tokyo, Japan)

^○Yuko Shimizu, Satoshi Imamine, Kimio Nakanishi, Yoshiyasu Taniguchi (Ozu City Hospital. Ozu City, Ehime, Japan)

^○Takashi Miyata, Shigeaki Mizuno, Joo Hayama, Kaori Makino, Kyouhei Ooyama, Akiko Haruta, Shihoko Kawashima, Yuki Nakamura, Yuuta Horiuchi, Toshiki Uehara, Daisuke Koushi, Hiroshi Kikuchi, Hitomi Nakamura, Hideki Sato, Naoto Harasawa, Hiroshi Matsumura, Mitsuhiko Moriyama (Dept. of Gastroenterology and Hepatology, Nihon Univ. Sch. of Med., Tokyo, Japan)

^○Kenichiro Seki¹, Motoyuki Yoshida¹, Masahide Enomoto¹, Koji Ishida¹, Akitoshi Douhara¹, Yasushi Ookura¹, Kei Moriya¹, Masakazu Uejima¹, Masayoshi Sawai², Akira Mitoro¹, Hitoshi Yoshiji¹, junichi Yamao², Hiroshi Fukui¹ (1.Third Dept. of Internal Medicine , Nara Medical University , Nara , Japan, 2.Department of Ultrasound and Endscopy , Nara Medical University , Nara , Japan)