The use of free beta-hCG in antenatal screening for Down's syndrome.
Spencer
K
K
Marcri
J N
JN
D006063:Chorionic Gonadotropin / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D012015:Reference Standards
D006063:Chorionic Gonadotropin