Nakagawara M, Kajimura M, Hanai H, Shimizu S, Kobayashi H
Department of Gastroenterology, Seirei Hamamatsu General Hospital, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Gastrointest Endosc. 2000 Oct;52(4):568-70. doi: 10.1067/mge.2000.108923.