Ahmed Mahrous Kamal Baz , Osama Abd El-Fattah El-Agamy , Mohamed Ibrahim Abdelghaffar , Hala Mounir Agha. “Left Atrial Strain in Pediatric Patients With Hemodynamically Significant PDA : Case- Control Study ”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 31, no. 8, Aug. 2024, pp. 139-58, https://doi.org/10.53555/1fkqm064.