Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleThe role of ultrasonographic markers for trisomy 21 in women with positive serum biochemistry.AuthorsVerdin, Stuart M.; Economides, Demetrios L.PublicationBJOG: An International Journal of Obstetrics & Gynaecology, 1998, Vol 105, Issue 1, p63ISSN1470-0328Publication typeArticleDOI10.1111/j.1471-0528.1998.tb09352.x