Tachecí I, Ryska A, Rejchrt S, Kopácová M, Horava V, Bures J
Second Department of Internal Medicine, Charles University Faculty of Medicine and Teaching Hospital, Hradec Králové, Czech Republic.
Endoscopy. 2008 Sep;40 Suppl 2:E104-5. doi: 10.1055/s-2007-966871. Epub 2008 Apr 1.