For citations:

Dvadtsatov I.V., Evtushenko A.V., Stasev A.N., Sotnikov A.V., Komarov R.N., Barbarash L.S. Immediate clinical results of the new biological support ring for correction of mitral insufficiency. Complex Issues of Cardiovascular Diseases. 2021;10(4):88-95. https://doi.org/10.17802/2306-1278-2021-10-4-88-95