Ghazaly, H., Eldemrdash, A., Atito, B., Abdelrheem, S. and A. Aly, A. (2021) “Fentanyl versus tramadol as an adjunct to bupivacaine in ultrasound-guided supraclavicular brachial plexus blockade: pros and cons”, Anaesthesia, Pain & Intensive Care, 25(4), pp. 450-457. doi: 10.35975/apic.v25i4.1565.