Mechanical heart valves: methods of examination, complications, and modes of failure.
D003645:Death, Sudden / Q000209:etiology; D006350:Heart Valve Prosthesis / Q000009:adverse effects; D006801:Humans; D010477:Perfusion / Q000379:methods / Q000401:mortality; D011183:Postoperative Complications / Q000401:mortality; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013997:Time Factors