“Evaluation of Regional Left and Right Ventricular Function in Patients with Ostium-Secundum Atrial Septal Defect Using Speckle Tracking Echocardiography” (2020) Archives of Clinical and Biomedical Research, 4(4), pp. 274–291. Available at: https://fortunejournals.org/ojs/index.php/acbr/article/view/14770 (Accessed: 17 September 2026).