Kravchuk, B., R. Maliarchuk, and O. Paratsii. “Radiofrequency Ablation in Patients With Left Ventricular Dysfunction Induced by Ventricular Premature Beats”. Ukrainian Journal of Cardiovascular Surgery, no. 2 (25) (September 12, 2016): 82-86. Accessed June 3, 2025. http://cvs.org.ua/index.php/ujcvs/article/view/242.