Adach , K., and M. Kuch. “N-3 Polyunsaturated Fatty Acids in Patients With Chronic Heart Failure ? The GISSI-HF Trial”. Medycyna Faktow (J EBM), Vol. 2, no. 1(2), Mar. 2009, pp. 33-42, https://www.journalsmededu.pl/index.php/jebm/article/view/2680.