Islam, M. M., Ali, N. P., Begum, R., & Akhtaruzzaman, A. (2012). Subarachnoid clonidine or fentanyl with low dose hyperbaric bupivacaine for elective caesarean section - A comparative study. Journal of Dhaka National Medical College &Amp; Hospital, 17(1), 14–17. https://doi.org/10.3329/jdnmch.v17i1.12185