title: Open access echocardiography. Single assessment may be dangerous.
authors.forename: R J
authors.initials: RJ
authors.lastname: MacFadyen
authors.forename: T M
authors.initials: TM
authors.lastname: MacDonald
authors.forename: P
authors.initials: P
authors.lastname: Clarkson
authors.forename: N M
authors.initials: NM
authors.lastname: Wheeldon
mesh_terms: D002303:Cardiac Output, Low / Q000000981:diagnostic imaging / Q000188:drug therapy; D004452:Echocardiography / Q000706:statistics & numerical data*; D005194:Family Practice; D006297:Health Services Accessibility; D006801:Humans