echocardiography: peak diastolic velocity (D2) of distal right pulmonary vein at end of expiration
echocardiography: peak diastolic velocity (d2) of distal right pulmonary vein at end of expiration
echocardiography: peak diastolic velocity of distal right pulmonary veins at end of expiration
echocardiography: peak diastolic velocity of distal right pulmonary veins at end of expiration