“Spatial Variation of Childhood Cancer under (15 Years) for the Middle Euphrates Governorates for 2013 (comparative Study)”. Journal of the College of Basic Education 24, no. 100 (December 8, 2022): 239–260. Accessed April 24, 2025. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6231.