Shafa, Amir, Anahita Hirmanpour, behzad nazemroayasedeh, Fateme Jafari, and Arash Pourreza. “Comparison of the Prophylactic Effect of Ondansetron, Dexamethasone, and the Combination of These Drugs on Decreasing Nausea and Vomiting in Children Aged 1 to 12 Years Old Undergoing Upper Gastrointestinal Endoscopy”. Archives of Anesthesiology and Critical Care 5, no. 1 (December 29, 2018): 10-14. Accessed January 16, 2019. http://aacc.tums.ac.ir/index.php/aacc/article/view/204.