Free beta-hCG as first-trimester marker for fetal trisomy.
Spencer
K
K
Macri
J N
JN
Aitken
D A
DA
Connor
J M
JM
D006063:Chorionic Gonadotropin / Q000097:blood*; D018997:Chorionic Gonadotropin, beta Subunit, Human; D002887:Chromosomes, Human, Pair 18; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D010446:Peptide Fragments / Q000097:blood*; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis; D014314:Trisomy
D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments