Nguyen, D. H., & Nguyen, T. T. (2026). Assessment of left ventricular global longitudinal strain in patients with severe aortic valve stenosis before and after surgery using 2d speckle-tracking echocardiography. The Vietnam Journal of Cardiovascular and Thoracic Surgery, 54, 116 - 132. https://doi.org/10.47972/vjcts.v54i.1644