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4. Risk of a Down syndrome live birth in women 45 years of age and older. Morris JK, De Vigan C, Mutton DE, Alberman E. Prenat Diagn; 2005 Apr; 25(4):275-8. PubMed ID: 15849789 [Abstract] [Full Text] [Related]
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12. Registration of Down syndrome in the Medical Birth Registry of Norway: validity and time trends. Melve KK, Lie RT, Skjaerven R, Van Der Hagen CB, Gradek GA, Jonsrud C, Braathen GJ, Irgens LM. Acta Obstet Gynecol Scand; 2008 May; 87(8):824-30. PubMed ID: 18607831 [Abstract] [Full Text] [Related]
13. Prenatal genetic diagnosis and elective abortion in women over 35: utilization and relative impact on the birth prevalence of Down syndrome in Washington State. Luthy DA, Emanuel I, Hoehn H, Hall JG, Powers EK. Am J Med Genet; 1980 May; 7(3):375-81. PubMed ID: 6451173 [Abstract] [Full Text] [Related]
14. The relationship between utilization of prenatal care and Down syndrome live births. Morris BA, Egan JF, Fang YM, Campbell WA. J Matern Fetal Neonatal Med; 2007 Apr; 20(4):307-11. PubMed ID: 17437238 [Abstract] [Full Text] [Related]