khan, Muhammad Nazir, et al. “ROLE OF SUBMUCOSAL TRAMADOL IN PAIN CONTROL AFTER MANDIBULAR THIRD MOLAR SURGERY: Submucosal Tramadol in Pain Control”. Pakistan Armed Forces Medical Journal, vol. 66, no. 3, June 2016, pp. 346-50, https://pafmj.org/PAFMJ/article/view/1300.