title: The natural history of valvular disease--implications regarding medical and surgical management.
mesh_terms: D000787:Angina Pectoris / Q000150:complications; D001024:Aortic Valve Stenosis / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D006333:Heart Failure / Q000150:complications; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008946:Mitral Valve Stenosis / Q000150:complications / Q000175:diagnosis / Q000601:surgery