the combination of two-dimensional and pulsed doppler echocardiography was used to measure determinants of cardiac function in 20 asa physical status i infants and small children ( 9 days-32 months of age ) during equipotent halothane ( n = 10 ) or isoflurane ( n = 10 ) anesthesia in oxygen .
C0004057
asa
C0021270
infants