title: Study of postoperative nausea and vomiting: recommending risk models for group comparisons.
authors.forename: C C
authors.initials: CC
authors.lastname: Apfel
authors.forename: M
authors.initials: M
authors.lastname: Koivuranta
authors.forename: B
authors.initials: B
authors.lastname: Sweeney
mesh_terms: D006801:Humans; D016015:Logistic Models; D020250:Postoperative Nausea and Vomiting / Q000209:etiology*; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors