О. С. Коміссарова, Г. П. Сябренко, С. Х. Салех Нажар, and Г. М. Сухомлин, “Methodical, Diagnostic and Prognostic Aspects Using Transmitral Blood Flow Indicators as Markers of Diastolic Dysfunction During the Progression of Chronic Heart Failure”, FMEP, no. 2, pp. 84–88, May 2019.