Fomych, G. M., N. I. Yabluchanskiy, and L. A. Martimyanova. “ORTHOSTATIC REACTIONS OF VENTRICULAR RATE IN PATIENTS WITH PERMANENT ATRIAL FIBRILLATION”. The Journal of V. N. Karazin Kharkiv National University, series "Medicine"0, no. 21 (1): 76-83. Accessed May 5, 2024. https://periodicals.karazin.ua/medicine/article/view/6900.