title: The long-term clinical assessment of heart valve substitutes.
mesh_terms: D000206:Actuarial Analysis; D001705:Bioprosthesis; D002986:Clinical Trials as Topic; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000592:standards; D006801:Humans; D008297:Male; D011475:Prosthesis Failure; D013673:Technology Assessment, Biomedical