Rajesh Kumar, and A. Jaiswal. “Nalbuphine As an Adjuvant to Bupivacaine in Ultrasound-Guided Brachial Plexus Blockade: A Meta-Analysis of Randomized and Controlled Trials”. Asian Journal of Medical Sciences, vol. 15, no. 1, Jan. 2024, pp. 254-61, doi:10.3126/ajms.v15i1.57163.