Screening for Down's syndrome using serum alpha fetoprotein.
H S
HS
Cuckle
N J
NJ
Wald
D004314:Down Syndrome / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins