title: Posting maternal blood samples for free beta-human chorionic gonadotrophin testing.
authors.forename: H S
authors.initials: HS
authors.lastname: Cuckle
authors.forename: R G
authors.initials: RG
authors.lastname: Jones
mesh_terms: D001800:Blood Specimen Collection / Q000379:methods*; D006063:Chorionic Gonadotropin / Q000097:blood*; D015925:Cryopreservation; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013997:Time Factors; D014186:Transportation
chemical_list: D006063:Chorionic Gonadotropin