Al-Jorrani, Shahbaa M, Sulafa K El- Samarrai, and Ali Y Majid. 2013. “Concentrations of Selected Elements in Saliva Among a Group of Adolescent Girls in Relation to Severity of Caries and Selected Salivary Parameters”. Journal of Baghdad College of Dentistry 25 (1): 171-75. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/157.