Ghanim Zubeer, Humam. “Mortality Rates of COVID-19 Disease A Biometric Study”. Annals of the College of Medicine, Mosul 47, no. 1 (June 1, 2025): 93–99. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/mmed/article/view/37154.