Experience with the Björk-Shiley valve prosthesis.
D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D006351:Heart Valves / Q000601:surgery*; D006801:Humans; D011183:Postoperative Complications