Intermittent aortic regurgitation with tilting disc valves.
D000293:Adolescent; D001021:Aortic Valve / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000209:etiology*; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male