[Heart valve diseases].
D001024:Aortic Valve Stenosis / Q000601:surgery; D004562:Electrocardiography; D006349:Heart Valve Diseases / Q000601:surgery*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000601:surgery; D014264:Tricuspid Valve Stenosis / Q000601:surgery