Dhananjay Kumar Suman, Rajendra Prasad, and Vijendra Prasad, “Evaluation of the effect of intravenous dexmedetomidine on spinal anaesthesia with 0.5% hyperbaric bupivacaine”, Int. J. Heal. Clin. Res., vol. 4, no. 19, pp. 234–237, Nov. 2021.