Mhambrey, S. P., Ahire, S. S. and Nayak, S. (2016) “Comparison of intrathecal sufentanil and hyperbaric bupivacaine with intrathecal hyperbaric bupivacaine for caesarean section”, International Journal of Research in Medical Sciences, 4(9), pp. 3829–3837. doi: 10.18203/2320-6012.ijrms20162891.