title: Extreme obstruction to left ventricular outflow by a bioprosthesis in the mitral valve position.
authors.affiliation: Pathology Branch, National, Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md.
authors.forename: W C
authors.initials: WC
authors.lastname: Roberts
authors.forename: A L
authors.initials: AL
authors.lastname: Dollar
mesh_terms: D000368:Aged; D001705:Bioprosthesis; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008943:Mitral Valve; D011475:Prosthesis Failure; D014694:Ventricular Outflow Obstruction / Q000209:etiology* / Q000473:pathology