Efficacy and Safety of Dexamethasone versus Fentanyl as an adjuvant with Bupivacaine and Lignocaine in Supraclavicular Brachial Plexus Block. (2019). Journal of the Bangladesh Society of Anaesthesiologists, 32(1), 10-17. https://doi.org/10.3329/jbsa.v32i1.66547