Zolotarova, T. V., Brynza, M. S., & Yabluchanskiy, M. I. (1). FUNCTIONAL CLASSES AND CLINICAL CHARACTERISTICS OF CHRONIC HEART FAILURE IN PATIENTS WITH ATRIAL FIBRILLATION AND/OR FLUTTER AFTER RADIOFREQUENCY ABLATION. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", (35), 72-77. https://doi.org/10.26565/2313-6693-2018-35-11