Kujur, S., Arora, K. K., Murthy, M. G. and Ekka, J. P. S. (2017) “A comparative study on effects of intrathecal ropivacaine plus dexmedetomidine versus ropivacaine plus clonidine”, International Journal of Research in Medical Sciences, 3(6), pp. 1478–1483. doi: 10.18203/2320-6012.ijrms20150171.