Katsinelos Panagiotis, Fasoulas Kostas, Beltsis Athanasios, Chatzimavroudis Grigoris, Zavos Christos, Terzoudis Sotiris, Kountouras Jannis
Department of Endoscopy and Motility Unit, Central Hospital, Thessaloniki, Greece.
Gastrointest Endosc. 2011 Jun;73(6):1298-301. doi: 10.1016/j.gie.2011.01.034. Epub 2011 Apr 14.