Hussein, F. J., A. M. Mustafa, and S. M. Sabir. “Dental Caries Experience and Periodontal Health Status in a Sample of Autism Children”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 22, no. 1, Apr. 2018, pp. 73-81, doi:10.15218/zjms.2018.010.