Eight year experience with the Björk-Shiley prosthesis in 833 patients.
D006328:Cardiac Catheterization; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006801:Humans; D011183:Postoperative Complications / Q000453:epidemiology / Q000401:mortality; D013923:Thromboembolism / Q000453:epidemiology