RT Journal Article SR Electronic A1 ABSTRACTS, T1 XXIX CONGRESS OF THE CZECH AND SLOVAK GASTROENTEROLOGICAL AND HEPATOLOGICAL SOCIETIES JF Biomedical papers YR 2003 VO 147 IS 1 UL https://biomed.papers.upol.cz/artkey/bio-200301-0018.php AB OLOMOUC, 2 - 4 OCTOBER 2003