title: The extent of Down's syndrome screening in Britain in 1991.
authors.forename: N
authors.initials: N
authors.lastname: Wald
authors.forename: K
authors.initials: K
authors.lastname: Wald
authors.forename: D
authors.initials: D
authors.lastname: Smith
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood; D004314:Down Syndrome / Q000097:blood* / Q000517:prevention & control; D004958:Estradiol / Q000097:blood; D005260:Female; D006302:Health Services Research; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008423:Maternal Age; D006113:United Kingdom; D000509:alpha-Fetoproteins / Q000737:chemistry
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins; D004958:Estradiol