Hisamatsu Tadakazu, Inoue Nagamu, Yajima Tomoharu, Izumiya Motoko, Ichikawa Hitoshi, Hibi Toshifumi
Department of Internal Medicine, School of Medicine, Keio University, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
J Gastroenterol. 2007 Jan;42 Suppl 17:34-40. doi: 10.1007/s00535-006-1937-4.