title: Aortic valve homograft replacement for failing prosthetic valves.
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000601:surgery / Q000637:transplantation*; D005260:Female; D006333:Heart Failure / Q000209:etiology; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D014184:Transplantation, Homologous; D014261:Tricuspid Valve / Q000601:surgery