Gupta, K.L., Gupta, A. and Neeraj, . 2017. Efficiency of nalbuphine as an adjuvant to bupivancaine in lower limb orthopaedic surgery-a prospective study. International Journal of Research in Medical Sciences. 5, 2 (Jan. 2017), 623–626. DOI:https://doi.org/10.18203/2320-6012.ijrms20170163.