preterm infants ( 35.5 +/- 0.4 wk ) with body weight appropriate for gestational age had lower values of bfm and sum of st as compared to the control group , without differences in fcw ( 0.23 +/- 0.03 versus 0.22 +/- 0.02 micrograms ) .
C0005910
body weight
C0005911
differences