<unk><unk>  restriction <unk>  refers to the poor<unk>  of a baby while in the mother's womb during pregnancy.
Specifically, it means the developing baby weights less than 90% of other babies at the same gestational age.
Intrauterine growth retardation
Fetal distress
Small for gestational age
Premature birth
Large for gestational age
Preterm labor and birth
Neonatal sepsis
Fetal hydantoin syndrome