Eftimova, Biljana, and Elizabeta Bosnakova. “HEART TRANSPLANTATION AS THE PEAK OF MODERN CARDIAC SURGERY: MEDICAL, ETHICAL AND CLINICAL ASPECTS”. KNOWLEDGE - International Journal , vol. 76, no. 4, June 2026, pp. 349-51, https://ojs.ikm.mk/index.php/kij/article/view/8321.