Appropriate terminology for free beta-hCG.
Hallahan
T W
TW
Krantz
D A
DA
D018997:Chorionic Gonadotropin, beta Subunit, Human; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D009626:Terminology as Topic; D014314:Trisomy / Q000175:diagnosis / Q000235:genetics
D018997:Chorionic Gonadotropin, beta Subunit, Human