“A Comparative Study Of Oral Pregabalin And Oral Pregabalin With Intravenous Fentanyl For Attenuation Of Pressor Response To Tracheal Intubation And Laryngoscopy – A Randomised Double Blind Study”, Journal of Pharmaceutical Negative Results, pp. 2043–2049, Jan. 2023, Accessed: Jun. 26, 2026. [Online]. Available: https://pnrjournal.com/index.php/home/article/view/6158