N. Chakraborty, S. Roy, D. Sur, A. Biswas, D. Bhattacharya, and A. Adhikari, “Comparison between esmolol and verapamil in attenuation of cardiovascular stress response to laryngoscopy and endotracheal intubation in elective surgery”, Asian J Med Sci, vol. 12, no. 7, pp. 64–68, Jul. 2021.