title: Open access echocardiography. Study's conclusion is misleading and cannot be generalised.
authors.forename: M
authors.initials: M
authors.lastname: Wallace
authors.forename: M
authors.initials: M
authors.lastname: Levy
mesh_terms: D002303:Cardiac Output, Low / Q000000981:diagnostic imaging; D004452:Echocardiography / Q000706:statistics & numerical data*; D005194:Family Practice; D006297:Health Services Accessibility; D006801:Humans