Valvular heart surgery--1984.
D000328:Adult; D001021:Aortic Valve / Q000601:surgery; D002648:Child; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000266:history*; D049671:History, 18th Century; D049673:History, 20th Century; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D011474:Prosthesis Design; D014481:United States