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2. Echocardiographic assessment of prosthetic heart valves;Zabalgoitia;Curr Probl Cardiol,1992
3. Echo-Doppler assessment of prosthetic heart valves;Wilkins,1994
4. Value and limitations of transesophageal echocardiography in evaluating prosthetic or bioprosthetic valve dysfunction;Herrera;Am J Cardiol,1992
5. Echocardiography of prosthetic heart valves;Zabalgoitia,1994