Fate of thrombectomized Björk-Shiley valves.
D001021:Aortic Valve / Q000601:surgery; D006083:Graft Occlusion, Vascular / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D012086:Reoperation