Ibis M, Onal I K, Birincioglu C L, Nessar G, Kurt M, Celep B, Ozkan M A, Tas A, Sayilir A, Sasmaz N
Department of Gastroenterology, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
Endoscopy. 2009;41 Suppl 2:E184-5. doi: 10.1055/s-0029-1214626. Epub 2009 Jul 27.