Valvular heart disease in the elderly.
D000368:Aged; D000375:Aging; D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000601:surgery; D004562:Electrocardiography; D004697:Endocarditis, Bacterial / Q000175:diagnosis; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000175:diagnosis / Q000601:surgery; D012016:Reference Values