Gvalani, S.K. and Pawar, H.S. 2016. Effect of intravenous clonidine premedication in patients undergoing laparoscopic cholecystectomy. International Journal of Research in Medical Sciences. 4, 9 (Dec. 2016), 3806–3811. DOI:https://doi.org/10.18203/2320-6012.ijrms20162785.