forty vlbw neonates ( 700 to 1300 g birth weight , 26 to 30 weeks gestational age ) , who were oxygen dependent and required mechanical ventilation for at least 72 hours after birth , were given by the intramuscular route either supplemental vitamin a ( retinyl palmitate 2000 iu ) or 0.9 % saline solution on postnatal day 4 and every other day thereafter for a total of 14 injections over 28 days .
C0282666
vlbw
C0005612
birth weight