Thrombosis encountered with Björk-Shiley prosthesis.
D001021:Aortic Valve / Q000601:surgery; D001344:Autopsy; D001696:Biomechanical Phenomena; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D013927:Thrombosis / Q000209:etiology* / Q000473:pathology; D014261:Tricuspid Valve / Q000601:surgery