S Holding. Show Affiliations »
Abstract
Entities: Disease
Mesh: See more » Down Syndrome/diagnosisFemaleGenetic TestingGestational AgeHumansPregnancyRisk FactorsSoftware
Year: 1991 PMID: 1827744 PMCID: PMC1669476 DOI: 10.1136/bmj.302.6782.965-a
Source DB: PubMed Journal: BMJ ISSN: 0959-8138