For citations:
Ignatenko G.A., Vatutin N.T., Taradin G.G., Shevelok A.N., Rakitskaya I.V. Aortic regurgitation: epidemiologic, etiologic, and pathophysiologic characteristics. The Clinician. 2020;14(3-4):57-68. (In Russ.) https://doi.org/10.17650/1818-8338-2020-14-3-4-K639