A Mohammad, Ahmed, Ghada A Taqa, and Abbas F AL-Taee. “The Effects of Topical Ketamine Gel on Saliva and Serum Level of Interlukin-6 in Patients With Recurrent Aphthous Ulceration”. Al-Rafidain Dental Journal 15, no. 1 (June 1, 2015): 387–392. Accessed January 12, 2026. https://rden.uomosul.edu.iq/index.php/rden/article/view/34795.