Meitei, A. J., Rubina, O., PKS, L., I., J. S., Ingudum, D. and R., M. R. (2016) “Evaluation of intrathecal bupivacaine alone, bupivacaine with butorphanol and bupivacaine with dexmedetomidine for lower segment caesarean section: a randomized control trial”, International Journal of Basic & Clinical Pharmacology, 5(6), pp. 2675–2682. doi: 10.18203/2319-2003.ijbcp20164145.