Orzeł-Nowak, A. and Wcisło, A. (2011) “Blood as a priceless gift – students of Cracow universities and honorary blood donation”, Nursing in the 21st Century, 10(2(35), pp. 61–68. Available at: https://czasopisma.umlub.pl/piel21w/article/view/2652 (Accessed: 8 June 2025).