Dziurkowska-Marek A, Hartleb M, Marek T A, Nowakowska-Duława E, Kaczor R, Ciupińska-Kajor M, Kajor M
Department of Gastroenterology and Hepatology, Medical University of Silesia in Katowice, Katowice, Poland.
Endoscopy. 2009;41 Suppl 2:E256. doi: 10.1055/s-0029-1215012. Epub 2009 Sep 28.