For citations:

Polunina E.A., Voronina L.P., Sevostyanova I.V., Polunina O.S., Tarasochkina D.S. Association of polymorphism 4a/4b and 4b/4a in endothelial nitric oxide synthase gene and markers of endothelial dysfunction in patients with chronic heart failure. Kardiologiia. 2018;58(4S):4-9. (In Russ.) https://doi.org/10.18087/cardio.2448