energy , protein , zinc intake , and weight and length were monitored at 3 , 6 , and 12 months in 50 preterm infants ( corrected for gestational age ) ( mean birthweight , 1,054 +/- 234 g ; mean gestation , 29 +/- 2.5 weeks ) and 60 full-term infants ( mean birthweight , 3,509 +/- 269 g ; mean gestation , 40 +/- 1 weeks ) .
C0005910
weight
C0005612
birthweight