echocardiography: right ventricular/left ventricular cardiac output ratio of prosthetic pulmonary valve with stress
echocardiography: right ventricular/left ventricular cardiac output ratio of prosthetic pulmonary valve with stress
echocardiography: right ventricular/left ventricular cardiac output ratio of prosthetic pulmonary valve with stress
echocardiography: right ventricular/left ventricular cardiac output ratio of prosthetic pulmonary valve with stress