Talib, Haider, and Maha Ahmed. “Assessment of Salivary α-Amylase and Flow Rate Levels and Their Correlation With Gingivitis and Severity of Chronic Periodontitis (Part: 1)”. Journal of Baghdad College of Dentistry 28, no. 4 (December 14, 2016): 115-121. Accessed November 20, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1509.