title: Gold standard must be solid gold.
authors.forename: W P
authors.initials: WP
authors.lastname: de Boode
authors.forename: S L
authors.initials: SL
authors.lastname: Vrancken
authors.forename: J
authors.initials: J
authors.lastname: Lemson
authors.forename: A
authors.initials: A
authors.lastname: Nusmeier
authors.forename: S M
authors.initials: SM
authors.lastname: Tibby
mesh_terms: D002302:Cardiac Output / Q000502:physiology*; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D007201:Indicator Dilution Techniques / Q000295:instrumentation*; D008297:Male; D014463:Ultrasonography