Agarwal, S., Gupta, K., Gupta, P. K., Bansal, M., Sharma, R., & Buchh, A. (2017). Clonidine versus fentanyl as adjuvant to 0.75% ropivacaine for epidural anesthesia for lower limb surgeries: a comparative evaluation. International Journal of Research in Medical Sciences, 4(8), 3606–3610. https://doi.org/10.18203/2320-6012.ijrms20162337