title: Accelerated calcific degeneration of a bovine pericardial valve in an adolescent.
mesh_terms: D000293:Adolescent; D001021:Aortic Valve / Q000601:surgery; D001705:Bioprosthesis / Q000009:adverse effects*; D002114:Calcinosis / Q000209:etiology*; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans