Sanghvi KS, Shah VA, Patel KD. Comparative study of bupivacaine alone and bupivacaine along with buprenorphine in axillary brachial plexus block: a prospective, randomized, single blind study. Int J Basic Clin Pharmacol [Internet]. 2017 Feb. 1 [cited 2025 Oct. 24];2(5):640-4. Available from: https://www.ijbcp.com/index.php/ijbcp/article/view/1333