A. M. Al-Chalabi, K., قصی, S. Z. Mahmood Al-Abachi, and صبا. “Enzymatic Changes in Serum of Benign and Malignant Brain Tumors Patients”. Journal of Education and Science (JES), vol. 21, no. 1, Mar. 2008, pp. 19-30, doi:10.33899/edusj.2008.51293.