echocardiography: concentric regurgitation of prosthetic truncal atrioventricular valve
echocardiography: concentric regurgitation of prosthetic truncal atrioventricular valve
echocardiography: concentric regurgitation of prosthetic truncal atrioventricular valve (procedure)
echocardiography: concentric regurgitation of prosthetic truncal atrioventricular valve (procedure)