echocardiography: low frequency diastolic turbulence of prosthetic left atrioventricular valve
echocardiography: low frequency diastolic turbulence of prosthetic left atrioventricular valve
echocardiography: low frequency diastolic turbulence of prosthetic left atrioventricular valve
echocardiography: low frequency diastolic turbulence of prosthetic left atrioventricular valve