Yakushev, A. V., and O. Z. Paratsii. “Comparative Characteristics of Different Methods of Radiofrequency Catheter Ablation in Atrial Flutter”. Zaporozhye Medical Journal 24, no. 5 (October 22, 2022): 516–520. Accessed May 6, 2024. http://zmj.zsmu.edu.ua/article/view/259489.