Abdel-Rahman, H. K., C. D. Tahir, and M. M. Saleh. “Incidence of Partial Edentulism and Its Relation With Age and Gender”.
Zanco Journal of Medical Sciences (Zanco J Med Sci)
, vol. 17, no. 2, Aug. 2013, pp. 463-70, doi:10.15218/zjms.2013.0033.