echocardiography: systolic ejection time of prosthetic pulmonary valve at end of expiration
echocardiography: systolic ejection time of prosthetic pulmonary valve at end of expiration
echocardiography: systolic ejection time of prosthetic pulmonary valve at end of expiration
echocardiography: systolic ejection time of prosthetic pulmonary valve at end of expiration