Agarwal, S., Samad, A., Gupta, K., Singh, R.K., Srivastava, R. and Baseer, A.M. 2019. Comparative efficacy of intravenous premedication of clonidine versus nalbuphine on intraoperative hemodynamic profile of patients during surgery under general anesthesia: a randomized study. International Journal of Research in Medical Sciences. 7, 5 (Apr. 2019), 1733–1739. DOI:https://doi.org/10.18203/2320-6012.ijrms20191667.