G/Egziabher, E. (2014) “Prevalence And Factors Associated With Postoperative Nausea And Vomiting at The University Of Gondar Teaching Hospital, Northwest Ethiopia, 2012: A Cross-Sectional Study”, Ethiopian Journal of Health and Biomedical Sciences, 6(1), pp. 49–57. doi:10.20372/ejhbs.v6i1.230.