Brynza MS, Yabluchanskіy MI. EHRA classes, additional cardiovascular risk and quality of life in patients during the first six months of atrial flutter and atrial fibrillation radiofrequency. Zaporozhye Medical Journal [Internet]. 2018May30 [cited 2024Nov.23];(3). Available from: http://zmj.zsmu.edu.ua/article/view/132107