Abbas, Afrah A, and Raja Al- Jubouri. “Evaluation of Salivary Levels of Proteinaceous Biomarkers Matrix Metalloproteinase (MMP-8) and C-Reactive Protein (CRP) in Type 2 Diabetic Patients With Periodontitis”. Journal of Baghdad College of Dentistry, vol. 25, no. 1, Mar. 2013, pp. 63-69, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/140.