No abstract available
MeSH terms
-
Adult
-
Biomarkers / blood
-
Down Syndrome / diagnosis*
-
Female
-
Genetic Testing / methods*
-
Humans
-
Maternal Age*
-
Pregnancy
-
Pregnancy, High-Risk*
-
Prenatal Diagnosis / methods*
-
Risk Factors
-
alpha-Fetoproteins / analysis*
Substances
-
Biomarkers
-
alpha-Fetoproteins