title: Aortic valve replacement: two years' experience with the Björk-Shiley tilting-disc prosthesis.
mesh_terms: D000925:Anticoagulants; D001014:Aortic Aneurysm / Q000601:surgery; D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D003327:Coronary Disease / Q000601:surgery; D005069:Evaluation Studies as Topic; D005500:Follow-Up Studies; D006330:Heart Defects, Congenital / Q000601:surgery; D006350:Heart Valve Prosthesis / Q000401:mortality; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000601:surgery; D013923:Thromboembolism / Q000209:etiology
chemical_list: D000925:Anticoagulants