Sanghvi, K. S., Shah, V. A., & Patel, K. D. (2017). Comparative study of bupivacaine alone and bupivacaine along with buprenorphine in axillary brachial plexus block: a prospective, randomized, single blind study. International Journal of Basic & Clinical Pharmacology, 2(5), 640–644. Retrieved from https://www.ijbcp.com/index.php/ijbcp/article/view/1333