R. V. Buriak, K. V. Rudenko, and O. A. Krykunov, “Analysis of Risk Factors for Acute Heart Failure in Patients with Dilated Cardiomyopathy and Persistent Severe Functional Mitral Regurgitation Despite Cardiac Resynchronization Therapy”, ujcvs, no. 4 (41), pp. 35-39, Dec. 2020.