No abstract available
MeSH terms
-
Chorionic Gonadotropin / blood
-
Down Syndrome / diagnosis*
-
Estriol / blood
-
Female
-
Humans
-
Mass Screening
-
Maternal Age*
-
Pregnancy
-
Sensitivity and Specificity
-
alpha-Fetoproteins / analysis
Substances
-
Chorionic Gonadotropin
-
alpha-Fetoproteins
-
Estriol