Aortic and mitral valve replacement: Part 1.
D000328:Adult; D001021:Aortic Valve; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000601:surgery*; D002648:Child; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve; D008944:Mitral Valve Insufficiency / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000601:surgery*