title: Color me variable: the irreproducible nature of color flow Doppler in mitral and aortic regurgitation.
authors.forename: Nelson B
authors.initials: NB
authors.lastname: Schiller
mesh_terms: D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging* / Q000503:physiopathology; D018618:Echocardiography, Doppler, Color / Q000592:standards*; D005260:Female; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging* / Q000503:physiopathology; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity