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