^○Shinya Kawaguchi, Tatsuya Itou, Touji Murabayashi, Hiroshi Miura, Takami Mayuko, Mitsuhiro Yamamura, Koyo Higashitani, Jun Oyamada, Hiroshi Fuke (Dept. of Gastroenterology, Ise Red Cross Hospital, Mie, Japan)

^○Shinichi Hashimoto¹, Hiroki Taguchi¹, Hitomi Hamamoto¹, Yuga Komaki¹, Hiromichi Iwaya¹, Shiho Arima¹, Junichi Nakazawa¹, Fumisato Sasaki¹, Yuichiro Nasu¹, Shuji Kanmura¹, Masatsugu Numata¹, Yuko Mataki², Kousei Maemura², Akio Ido¹ (1.Dept. of Digestive and Lifestyle Related Disease, Kagoshima University, Kagoshima, Japan, 2.Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University, Kagoshima, Japan)

^○Michihiro Ono¹, Hirotoshi Ishiwatari¹, Naoki Uemura¹, Tsuyoshi Hayashi¹, Tsutomu Sato¹, Koji Miyanishi¹, Yasushi Sato¹, Risyu Takimoto¹, Masayoshi Kobune¹, Masafumi Imamura², Yasutoshi Kimura², Junji Kato¹ (1.Dept. of Medical Oncology and Hematology, Sapporo Medical University, Sapporo, Japan, 2.Department of Surgery, Surgical Oncology and Science, Sapporo, Japan)

^○Masaya Wada, Takahiko Ito, Kazuhiro Matsumoto, Kazuya Hosotani, Tatsunori Minamide, Hiroki Kitamoto, Yohei Taniguchi, Masashi Fukushima, Naoto Shimeno, satoko inoue, Hiroshi Tei, Yoshiki Suginoshita, Tetsuro Inokuma (Dept. of Gastroenterology and Hepatology, Kobe City Medical Center General Hospital, Kobe, Japan)

^○Toru Kaneko, Mitsuhiro Kida, Shiro Miyazawa, Hiroshi Yamauchi, Kosuke Okuwaki, Tomohisa Iwai, Miyoko Takezawa, Hidehiko Kikuchi, Hiroshi Imaizumi, Wasaburo Koizumi (Dept. of Gastroenterology, Kitasato University Hospital, Japan)

^○Hironari Kato, Hiroyuki Okada, Kazuhide Yamamoto (Departments of Gastroenterology and Hepatology, Okayama University Graduate School)