Potashev, S. V., S. V. Salo, A. Y. Gavrylyshyn, L. M. Hrubyak, O. M. Unitska, and S. V. Fedkiv. 2020. “Longitudinal Strain by Speckle Tracking During Dobutamine Stress Echocardiography in Suspected Coronary Arteries Disease”. Ukrainian Journal of Cardiovascular Surgery, no. 4 (41) (December), 15-25. https://doi.org/10.30702/ujcvs/20.4112/032015-025/73.7.