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Pregnancy
Gestational Age
Newborn Infant
Chorionic Villus Sampling
Ultrasonography, Prenatal
Amniocentesis
Pregnancy Outcomes
First Pregnancy Trimester
Cohort Studies
Prospective Studies
Risk Factors
Pregnancy Complications
Premature Obstetric Labor
Antiphospholipid Syndrome
Spontaneous Abortion
Newborn Respiratory Distress Syndrome
Antibodies, Anticardiolipin
Platelet Activating Factor
Amniotic Fluid
Endothelium, Vascular
Co-Publications
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