For citations:

Mamchur I.N., Chichkova T.Y., Karetnikova V.N., Mamchur S.E., Romanova M.P. LEFT ATRIAL MECHANICAL FUNCTION AND ITS DISORDERS AFTER PULMONARY VEIN ANTRUM ISOLATION. Complex Issues of Cardiovascular Diseases. 2018;7(2):137-145. (In Russ.) https://doi.org/10.17802/2306-1278-2018-7-2-137-145