Shoukry, A. ., M. M. Bakr, S. . Mekhemer, and S. . Yassin. “Evaluation of Patient-Controlled Sedation (PCS) During Surgical Removal of Impacted Lower Third Molars”. Medical Science and Discovery, vol. 3, no. 1, Jan. 2016, pp. 7-15, https://medscidiscovery.com/index.php/msd/article/view/139.