Assi, S.H. and Al_Husain, R.S. 2014. Study of Protective effect of Glutathione Peroxidase (GSH-Px), Vitamin E and Selenium on Iraqi children with Leukemia. Journal of Biotechnology Research Center (JOBRC). 8, 4 (Dec. 2014), 15–21. DOI:https://doi.org/10.24126/jobrc.2014.8.4.371.