Saleh , Amin J., Liangbin Zhang, Sally M. Hadi, and Wen Ouyang. “A Priming Dose of Intravenous Ketamine-Dexmedetomidine Suppresses Fentanyl-Induced Coughing: A Double-Blind, Randomized, Controlled Study”. Upsala Journal of Medical Sciences 119, no. 4 (November 4, 2014): 333–337. Accessed April 9, 2026. https://ujms.net/index.php/ujms/article/view/5868.