Sule, P. M., & Basantwani, S. (2017). A double blind prospective study of effect of intrathecal ropivacaine 0.75% and bupivacaine 0.5% for lower limb orthopedic surgery in young patients. International Journal of Basic & Clinical Pharmacology, 5(5), 1798–1802. https://doi.org/10.18203/2319-2003.ijbcp20162600