A 33-day-old, small-for-gestational age female infant born at term to a 37-year-old gravida 2 mother with 1 previous miscarriage is admitted to the NICU. Family history showed no consanguinity. The antenatal course was complicated by fetal growth restriction which was first noticed on the antenatal scan at 12 weeks’ gestation. The mother did not have gestational hypertension, gestational diabetes, or any chronic illness. She was a nonsmoker and did not have short stature. The infant was delivered at 37 weeks’ gestation via cesarean section with a birthweight of 1,704 g (<3rd percentile). Apgar scores were 9 at 1 and 5 minutes. Her length (40 cm) and occipitofrontal circumference (30 cm) at birth were also less than the 3rd percentile as per the Fenton chart. She was discharged from the hospital on day 3 after birth. She was exclusively breastfed at home. She is now readmitted to the NICU on day...

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