title: Postoperative nausea and vomiting--the importance of power.
authors.forename: S M
authors.initials: SM
authors.lastname: Yentis
mesh_terms: D018849:Controlled Clinical Trials as Topic; D006801:Humans; D009325:Nausea / Q000188:drug therapy*; D011183:Postoperative Complications / Q000188:drug therapy*; D018401:Sample Size; D014839:Vomiting / Q000188:drug therapy*