الفهرس 
A compartive study between dexamethasone, metoclopramide and ondansetron in the prevention of postoperative nausea and vomiting (PONV) after middle ear surgery
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Abstract
Postoperative nausea and vomiting is a common distressing symptom. There are guidelines for management of Postoperative nausea and vomiting. We will compare efficacy between Dexamethasone, Metoclopramide and Ondansetron in prevention of postoperative nausea and vomiting after middle ear surgery