echocardiography: high frequency systolic turbulence of prosthetic left atrioventricular valve
echocardiography: high frequency systolic turbulence of prosthetic left atrioventricular valve
echocardiography: high frequency systolic turbulence of prosthetic left atrioventricular valve (procedure)
echocardiography: high frequency systolic turbulence of prosthetic left atrioventricular valve (procedure)