Ali, Baidaa, and Maha Mahmood. “Assessment of Salivary Total Antioxidants Capacity Levels of Patients With Chronic Periodontitis in Comparison to Healthy Control”. Journal of Baghdad College of Dentistry 30, no. 1 (March 15, 2018): 58-62. Accessed November 30, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/2443.