SIRAJ, Mohamed Mausool et al. Evaluation of Subclinical Systolic Dysfunction in Patients with Heart Failure with Preserved Ejection Fraction, Using 2D Speckle Tracking Echocardiography. University Heart Journal, [S. l.], v. 20, n. 1, p. 3–9, 2025. DOI: 10.3329/uhj.v20i1.78462. Disponível em: https://banglajol.info/index.php/UHJ/article/view/78462. Acesso em: 14 mar. 2025.