For citations:

Soldatova A.M., Kuznetsov V.A., Gizatulina T.P., Malishevsky L.M., Dyachkov S.M. The relationship of the prolonged PR interval with the long-term survival in patients with heart failure undergoing cardiac resynchronization therapy. Russian Journal of Cardiology. 2020;25(1):3348. https://doi.org/10.15829/1560-4071-2020-1-3348