Sharma, N. R., Timalsena, P., & DC, S. (2014). A comparison of epidural analgesia provided by Bupivacaine plus Pethidine, Bupivacaine plus Morphine, or Bupivacaine plus Morphine plus Midazolam for lower limb orthopaedic surgery. Journal of Kathmandu Medical College, 2(3), 117–121. https://doi.org/10.3126/jkmc.v2i3.9961