title: [25 years of heart-valve surgery. Review and outlook].
mesh_terms: D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery; D006348:Cardiac Surgical Procedures / Q000266:history*; D002648:Child; D005860:Germany, West; D006349:Heart Valve Diseases / Q000601:surgery; D006350:Heart Valve Prosthesis / Q000266:history* / Q000295:instrumentation; D006351:Heart Valves / Q000601:surgery*; D049673:History, 20th Century; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D014261:Tricuspid Valve / Q000601:surgery
vernacular_title: 25 Jahre Herzklappenchirurgie. Rückblick und Ausblick.