For citations:

Dvadtsatov I.V., Evtushenko A.V., Kuzmina O.K., Barbarash L.S. Comparative analysis of mid-term outcomes of Rigid and NeoRing support rings in mitral regurgitation surgery: a prospective randomized trial. Complex Issues of Cardiovascular Diseases. 2022;11(4):62-71. (In Russ.) https://doi.org/10.17802/2306-1278-2022-11-4-62-71