echocardiography: low frequency diastolic turbulence of common atrioventricular valve
echocardiography: low frequency diastolic turbulence of common atrioventricular valve
echocardiography: low frequency diastolic turbulence of common atrioventricular valve (procedure)
echocardiography: low frequency diastolic turbulence of common atrioventricular valve (procedure)