Khaniukov, O. O., M. I. Yalovenko, O. S. Kalashnykova, and O. I. Kravchenko. “Clinical Course and Risk Prediction of Permanent Atrial Fibrillation Development in Patients With Chronic Heart Failure and Mid-Range Ejection Fraction of the Left Ventricle”. Medicni Perspektivi, vol. 25, no. 2, July 2020, pp. 78-85, doi:10.26641/2307-0404.2020.2.206368.