Modak, S., & Basantwani, S. (2017). Comparative study of 0.5% ropivacaine and 0.5% bupivacaine for brachial plexus block by supraclavicular approach for upper limb surgeries. International Journal of Basic & Clinical Pharmacology, 5(4), 1205–1209. https://doi.org/10.18203/2319-2003.ijbcp20162243