Naja, Mohammad Mostafa, Abdullah Cheikh Ibrahim, and Mohammad Alkhayer. “Left Ventricular Dysfunction in Patients With Chronic Obstructive Pulmonary Disease”. Journal of medical and pharmaceutical sciences 6, no. 5 (September 26, 2022): 95–104. Accessed January 24, 2026. https://journals.ajsrp.com/index.php/jmps/article/view/5575.