echocardiography: dehisced sewing ring of prosthetic common atrioventricular valve
echocardiography: dehisced sewing ring of prosthetic common atrioventricular valve
echocardiography: dehisced sewing ring of prosthetic common atrioventricular valve (procedure)
echocardiography: dehisced sewing ring of prosthetic common atrioventricular valve (procedure)