Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRates of Down syndrome at the upper extreme of maternal age: considerations and recommendations in analysis.AuthorsMorris, Joan K.; Mutton, David; Alberman, EvaPublicationPrenatal Diagnosis, 2006, Vol 26, Issue 11, p1091ISSN0197-3851Publication typeArticleDOI10.1002/pd.1570