Kremzer, A. A. “Circulating Endothelial Progenitor Cells As a Marker of Left Ventricular Pump Function in Ischemic Chronic Heart Failure”. Current issues in pharmacy and medicine: science and practice, no. 3 (November 1, 2017). Accessed April 3, 2025. http://pharmed.zsmu.edu.ua/article/view/113561.