S. . Qays and R. . Hadi, “Assessment of cortisol as salivary psychological stress marker in relation to temporomandibular disorders among a sample of dental students”, J Bagh Coll Dent, vol. 27, no. 2, pp. 86–92, Jun. 2015, Accessed: May 02, 2024. [Online]. Available: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/716