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Pregnancy
Gestational Age
Vascular Resistance
Ultrasonography, Prenatal
Ultrasonography
Prenatal Diagnosis
Fetal Diseases
Phenylketonuria, Maternal
Congenital Heart Defects
Newborn Infant
Second Pregnancy Trimester
Pregnancy Outcomes
First Pregnancy Trimester
Blood Flow Velocity
Caesarean Section
Sensitivity and Specificity
Risk Factors
Umbilical Arteries
Fetuses
Amniotic Fluid
Co-Publications
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