Tehran University of Medical Sciences (TUMS) Academic Journal of Surgery 2423-3218 2 1-2 2015 10 05 17 17 EN Ali Movafegh Department of Anesthesiology, Critical Care and Pain Medicine, Tehran University of Medical Sciences, Tehran, Iran. Omid Azimaraghi Department of Anesthesiology, Critical Care and Pain Medicine, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 05 2015 10 05 No Abstract https://ajs.tums.ac.ir/index.php/ajs/article/view/17 https://ajs.tums.ac.ir/index.php/ajs/article/download/17/17