FUNCTION CLASS OF CHRONIC HEART FAILURE AND EFFICIENCY OF THERAPY AMIODARONE AND ITS COMBINATION WITH BETA-ADRENOBLOCKERS PERMANENT FORM OF ATRIAL FIBRILLATION AT PATIENTS WITH ARTERIAL HYPERTENSION AND ISCHEMIC HEART DISEASE. J. V. N. Karazin Khark. Nat. Univ., Ser. Med. 2015;(9):63-66. Accessed October 25, 2026. https://periodicals.karazin.ua/medicine/article/view/7196