Serum screening for Down's syndrome.
Kennard
A
A
Goodburn
S
S
Golightly
S
S
Piggott
M
M
D004314:Down Syndrome / Q000097:blood*; D005260:Female; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis / Q000379:methods*; D012307:Risk Factors