title: Matching groups for studying postoperative nausea and vomiting: should we care?
authors.forename: Boris
authors.initials: B
authors.lastname: Mraovic
authors.forename: Tatjana
authors.initials: T
authors.lastname: Simurina
mesh_terms: D000932:Antiemetics / Q000627:therapeutic use*; D001562:Benzimidazoles / Q000627:therapeutic use*; D006801:Humans; D017294:Ondansetron / Q000627:therapeutic use*; D020250:Postoperative Nausea and Vomiting / Q000188:drug therapy*; D012307:Risk Factors
chemical_list: D000932:Antiemetics; D001562:Benzimidazoles; D017294:Ondansetron; C071315:ramosetron