echocardiography: systolic flow velocity of descending thoracic aorta at end of expiration
echocardiography: systolic flow velocity of descending thoracic aorta at end of expiration
echocardiography: systolic flow velocity of descending thoracic aorta at end of expiration
echocardiography: systolic flow velocity of descending thoracic aorta at end of expiration