Sheikh, S. A.; Mir, A. H.; Yousuf, A.; Naqash, I. A. Evaluation of Efficacy of Intravenous Magnesium Sulphate Versus Dexamethasone for Prevention of Postoperative Sore Throat in Patients Undergoing Lumbar Spine Surgery in Prone Position: A Prospective Randomized Double Blind Placebo Controlled Study. Int J Adv Med 2019, 6, 833-839.