Khalid, K, A Hussien, K Khalafela, A Yonis, AA Eltoum, and A Hassan. “Clinical Presentation of Parkinson’s Disease Among Sudanese Patients”. Sudan Journal of Medical Sciences 4, no. 3 (November 30, 2009). Accessed August 31, 2026. https://www.ajol.info/index.php/sjms/article/view/48324.