Loffredo, C. A., Shaker, Y. E., Jillson, I. A., Boulos, D. N., Saleh, D. A., Garas, M., Ostrowski, M.-J., Sun, X., Chen, X., Shander, B., & Amr, S. (2017). Prevalence and correlates of substance use by Egyptian school youth. International Journal of Alcohol and Drug Research, 6(1), 37-51. https://doi.org/10.7895/ijadr.v6i1.242