For citations:

Zhirov I.V., Safronova N.V., Osmolovskaya Yu.F., Тereschenko S.N. Prognostic value of atrial fibrillation in patients with heart failure and different left ventricular ejection fraction: results of the multicenter RIF-CHF register. Russian Journal of Cardiology. 2021;26(1):4200. https://doi.org/10.15829/1560-4071-2021-4200