Azeez, Basma A, and Ahlam T Mohammed. “Salivary Tumor Marker CA15-3 and Selected Elements in Relation to Oral Health Status Among a Group of Breast Cancer Women”. Journal of Baghdad College of Dentistry, vol. 27, no. 3, Sept. 2015, pp. 124-9, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/818.