N, R., P, M. R., & Ali, M. M. (2017). Effect of intravenous infusion of magnesium sulphate on postoperative analgesia in patients undergoing arthroscopic knee surgeries under spinal anaesthesia. International Journal of Basic & Clinical Pharmacology, 6(2), 291–297. https://doi.org/10.18203/2319-2003.ijbcp20170046