T. A. M. Ibrahim, A. M. A. Alfaki, O. N. E. Ali, O. M. A. Mustafa, and H. A. Alhassan, “Causes of Refusing of COVID-19 Vaccination Among Medical Care Providers in Omdurman Teaching Hospital, Khartoum, Sudan, 2022”, IJRAMT, vol. 6, no. 5, pp. 52–58, May 2025, Accessed: May 31, 2025. [Online]. Available: https://journals.ijramt.com/index.php/ijramt/article/view/3068