Antenatal screening for Down's syndrome.
Wald
N
N
Densem
J
J
Kennard
A
A
D000293:Adolescent; D000328:Adult; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012307:Risk Factors