title: Mechanical heart valves: the test of time....
authors.forename: Gus J
authors.initials: GJ
authors.lastname: Vlahakes
mesh_terms: D001024:Aortic Valve Stenosis / Q000601:surgery*; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006801:Humans; D013997:Time Factors