P. Hajian, B. Malekianzadeh, and M. Davoudi, “ Efficacy of Intravenous Ondansetron on Hemodynamic Complications in Women Undergoing Spinal Anesthesia for Cesarean Section: A Randomized Placebo Controlled Clinical Trial: ”, Galen Med J, vol. 5, no. 1, p. e475, Mar. 2016.