Sugiyama, Shigeki M.D.1; Yashiro, Kurato M.D.1; Nagasako, Kou M.D.1; Sato, Shuichi M.D.1; Watanabe, Kazuyosi M.D.1; Igarashi, Tatsuki M.D.1; Hanyu, Fujio M.D.1; Obata, Hirosi M.D.1
1Institute of Gastroenterology
Tokyo Women's Medical College
8-1 Kawada-cho, Shinjuku-ku
162
Tokyo
Japan