title: Mitral valve replacement. Results 20 years after operation.
mesh_terms: D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000401:mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery*