Thrombosis of the porcine heterograft heart valve bioprosthesis.
D000368:Aged; D000818:Animals; D001705:Bioprosthesis / Q000009:adverse effects*; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D013552:Swine; D013927:Thrombosis / Q000209:etiology*