1.
Celiński K, Fornal R, Dworzański T, Słomka M, Mądro A. Advances in gastrointestinal endoscopy in practical terms. Pol J Public Health [Internet]. 2012 Apr. 1 [cited 2025 Aug. 3];122(2):211-6. Available from: https://czasopisma.umlub.pl/pjph/article/view/1775