Nikonenko, O. S., A. O. Nikonenko, K. O. Chmul, O. V. Molodan, and V. V. Osaulenko. “Study of the Functional State of the Left Ventricular Myocardium in Patients With Coronary Artery Disease With Impaired Metabolism of Homocysteine and Vitamin D”. Ukrainian Journal of Cardiovascular Surgery, no. 1 (38), Feb. 2020, pp. 62-68, doi:10.30702/ujcvs/20.3803/014062-068.