Onozato Y, Kakizaki S, Ishihara H, Sohara N, Iizuka H, Okamura S, Mori M, Ogawa T, Itoh H
Department of Endoscopy and Endoscopic Surgery, Shirakawa Clinic, Maebashi, Gunma, Japan.
Endoscopy. 2008 Sep;40 Suppl 2:E92-3. doi: 10.1055/s-2007-995573. Epub 2008 Mar 20.