K Spencer, J N Macri, D A Aitken, J M Connor. Show Affiliations »
Abstract
Mesh: See more » Chorionic Gonadotropin/bloodChorionic Gonadotropin, beta Subunit, HumanChromosomes, Human, Pair 18Down Syndrome/diagnosisFemaleFetal Diseases/diagnosisHumansPeptide Fragments/bloodPregnancyPregnancy Trimester, FirstPrenatal DiagnosisTrisomy
Substances: See more » Chorionic GonadotropinChorionic Gonadotropin, beta Subunit, HumanPeptide Fragments
Year: 1992 PMID: 1376387 DOI: 10.1016/0140-6736(92)92073-o
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321