For citations:
Ovchinnikov A.G., Potekhina A.V., Ibragimova N.M., Barabanova E.A., Yushchyuk E.N., Ageev F.T. Mechanisms of exercise intolerance in patients with heart failure and preserved ejection fraction. Part I: The role of impairments in the left heart chambers. Kardiologiia. 2019;59(6S):4-16. (In Russ.) https://doi.org/10.18087/cardio.n394