“Assessment of Copper, Zinc and Lead Levels in Patients With Renal Failure before and After Their First Dialysis ”. Journal of the College of Basic Education 1, no. وقائع المؤتمر العلمي لكلية التربية الأسا (October 27, 2025): 107–112. Accessed June 4, 2026. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/13868.