Bhagat, D., Kumar, D., Khanna, D., & Suwalka, D. (2014). Comparative Study Of The Effect Of Esmolol, Fentanyl And Their Combination For Attenuating Haemodynamic Responses Of Laryngoscopy And Intubation: Comparative Study Of The Effect of Esmolol, Fentanyl And Their Combination. National Journal of Integrated Research in Medicine, 5(3), 1–6. Retrieved from http://nicpd.ac.in/ojs-/index.php/njirm/article/view/724