STERNAL, Danuta, DZIĘCIELSKA, Ewa and BĄK, Ewelina. Acceptance of the disease by patients over 70 with chronic heart failure. Journal of Education, Health and Sport. Online. 31 July 2023. Vol. 31, no. 1, pp. 114-126. [Accessed 18 February 2026]. DOI 10.12775/JEHS.2023.31.01.010.