D. P. sharma, D. A. K. J. D. K. kumar T. D. D. G. . Dr Chandrakant, “Comparative Evaluation of Efficacy of Levobupivacaine with Clonidine and Levobupivacaine with Dexmedetomidine in Supraclavicular Brachial Plexus Block - A Clinical Study”, Annals of RSCB, vol. 25, no. 6, pp. 3259–3269, May 2021.