echocardiography: diastolic flow velocity of prosthetic truncal atrioventricular valve
echocardiography: diastolic flow velocity of prosthetic truncal atrioventricular valve
echocardiography: diastolic flow velocity of prosthetic truncal atrioventricular valve (procedure)
echocardiography: diastolic flow velocity of prosthetic truncal atrioventricular valve (procedure)