For citations:

Lebedeva N.B., Isakov L.K., Sinkova M.N., Tarasov N.I., Kuznetsova L.V. CLINICAL AND PROGNOSTIC FEATURES OF ELDERLY PATIENTS WITH UNSTABLE ANGINA PECTORIS UNDERGOING CONSERVATIVE TREATMENT DEPENDING ON LEFT VENTRICULAR EJECTION FRACTION. Complex Issues of Cardiovascular Diseases. 2023;12(2):35-45. (In Russ.) https://doi.org/10.17802/2306-1278-2023-12-2-35-45