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2. Prosthetic replacement of cardiac valves. Five and one-half years' experience;Beall;Amer. J. Cardiol.,1969
3. Prosthetic heart valve replacement: Causes of early postoperative death;Colaprinto;Circulation,1970
4. Electrocardiographic alterations following prosthetic valve replacement;Dreifus;Circulation,1964
5. Factors affecting thromboembolism associated with prosthetic heart valves;Duvoisin;Circulation,1967