title: Rational control of PONV--the rule of three.
authors.forename: Martin R
authors.initials: MR
authors.lastname: Tramèr
mesh_terms: D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D015588:Observer Variation; D020250:Postoperative Nausea and Vomiting / Q000517:prevention & control*; D012307:Risk Factors