the main differences between the two groups were in the age at the time of the first enteric feeding ( 1.6 +/- 0.9 d v. 40 +/- 2.4 d [ mean +/- one standard deviation ] ; p less than 0.001 ) and the interval between this feeding and the onset of symptoms ( 3.0 +/- 1.5 d v. 10.6 +/- 6.0 d ; p less than 0.01 ) .
C0040223
time
C2911686
first