For citations:

Safronenko V.A., Chesnikova A.I., Korobka V.L. Diagnostic value of cardiac marker concentrations in patients with heart failure depending on frailty syndrome. Russian Journal of Cardiology. 2024;29(9):5830. (In Russ.) https://doi.org/10.15829/1560-4071-2024-5830. EDN: CMPUPR