Agarwal, S., Singh, R. B., Singh, D., Kumar, M., Mishra, P. K., & Bhardwaj, B. B. (2017). Epidural bupivacaine combined with dexmedetomidine or clonidine in infraumbilical surgeries: a comparative evaluation. International Journal of Research in Medical Sciences, 3(11), 3254–3261. https://doi.org/10.18203/2320-6012.ijrms20151172