For citations:
Ageev F.T., Ovchinnikov A.G. Heart Failure With Low and Preserved Left Ventricular Ejection Fraction – are These Two Different Independent Diseases or One Disease, but at Different Stages of its Progression? How Does This Affect the Choice of Therapy and Its Effectiveness? Kardiologiia. 2023;63(10):4-8. https://doi.org/10.18087/cardio.2023.10.n2553