echocardiography: diastolic time-velocity integral (TVI) of distal right pulmonary vein with stress
echocardiography: diastolic time-velocity integral (tvi) of distal right pulmonary vein with stress
echocardiography: diastolic time-velocity integral (TVI) of distal right pulmonary vein with stress (procedure)
echocardiography: diastolic time-velocity integral (tvi) of distal right pulmonary vein with stress (procedure)