^○Aya Sugimoto¹, Takuya Yamada¹, Kentaro Nakagawa¹, Yuichiro Matsumura¹, Keisuke Fukutomi¹, Keiichi Kimura¹, Kenji Hibino¹, Tetsuya Iwasaki¹, Ryuichiro Iwasaki¹, Kumiko Nishio¹, Hiroko Hasegawa¹, Yuko Sakakibara¹, Shoichi Nakazuru¹, Hisashi Ishida¹, Tomoko Uehira², Kiyoshi Mori³, Eiji Mita¹ (1.Dept. of Gastroenterology and Hepatology, Osaka National Hospital, Osaka, Japan, 2.AIDS Medical Center, Osaka National Hospital, Osaka, Japan, 3.Department of Pathology, Osaka National Hospital, Osaka, Japan)

^○Yutaro Ihara¹, Kazuoki Hizawa¹, Kouhei Fujita¹, Tomoki Nitahata¹, Kozue Higuti¹, Mari Mine², Motohiro Esaki³, Mituo Iida¹ (1.Kyushu Central Hospital, Fukuoka, Japan, 2.Kyushu central hospital Pathology, Fukuoka, Japan, 3.Medicine and Clinical Science Graduate School of Medical Sciences, Kyushu Univeersity)

^○Masakazu Kitamura, Tatsuya Tanaka, Yoshitaka Hamaudu, Toru Kato, Hideki Ishikawa, Shinya Maruta (Dept. of Internal Medicine, KKR Tokai Hospital, Nagoya, Japan)

^○Wataru Miwa¹, Takashi Hiratsuka¹, Yusuke Kamiya¹, Hidenori Shoji¹, Syutetsu Tei¹, Katsuryo Dairaku¹, Koji Tobita², Taketoshi Fujimoto², Ken Sato² (1.Div. of Internal Medicine, Hiratsuka Gastroenterological Hospital, Japan, 2.Div. of Surgery, Hiratsuka Gastroenterological Hospital)