Imiela , J., G. Opolski, G. Rydzewska, D. Baczewska-Mazurkiewicz, R. Małecki, and K. J. Filipiak. “Position Paper of the Working Group of Three Polish National Consultants In: Internal Medicine, Gastroenterology and Cardiology Concerning the Rules of Gastrointestinal complications’ Prevention During the Antiplatelet Treatment”. Medycyna Faktow (J EBM), Vol. 2, no. 3(4), Sept. 2009, pp. 43-46, https://journalsmededu.pl/index.php/jebm/article/view/2646.