Kwiatkowska M, Porzych K, Porzych M, Polak-Szabela A, Kędziora-Kornatowska K, Zieliński T, et al. The analysis the frequency and causes of collapses among the elderly suffering from coronary hart disease (CHD). Collapses and coronary hart disease (CHD). Piel21w [Internet]. 2011 Jan. 1 [cited 2025 Sep. 10];10(1(34):17-22. Available from: https://czasopisma.umlub.pl/piel21w/article/view/2556