echocardiography: left ventricular ejection time (LVET) of aortic valve at rest
echocardiography: left ventricular ejection time (lvet) of aortic valve at rest
echocardiography: left ventricular ejection time (LVET) of aortic valve at rest
echocardiography: left ventricular ejection time (lvet) of aortic valve at rest