Katsinelos Panagiotis, Chatzimavroudis Grigoris, Kotakidou Rodi, Zavos Christos, Paroutoglou George, Kountouras Jannis
Department of Endoscopy and Motility Unit, Central Hospital, Thessaloniki, Greece.
Gastrointest Endosc. 2007 Aug;66(2):411-2. doi: 10.1016/j.gie.2006.12.002. Epub 2007 May 24.