Nasir, R. A. A., S. A. O. Ahmed, and I. G. Ibrahim. “Patterns and Clinical Presentation of Foreign Bodies in ENT Among Sudanese Children in Khartoum State Hospitals.”. Sudan Journal of Medical Sciences (SJMS), Vol. 12, no. 3, Sept. 2017, pp. 151-62, doi:10.18502/sjms.v12i3.928.