A. Zuberi, V. Tiwary, B. Rastogi, K. Gupta, A. Kumar, and R. Farooqui, “Comparison of hemodynamic responses of intravenous dexmedetomidine and esmolol infusion during laparoscopic cholecystectomy”, Int J Res Med Sci, vol. 6, no. 4, pp. 1429–1434, Mar. 2018.