Article
Screening for trisomy 21 in twin pregnancies by maternal age and fetal nuchal translucency thickness at 10–14 weeks of gestation
1 Oct 1996
Abstract excerpt
OBJECTIVE: To determine the prevalence of increased fetal nuchal translucency thickness in twin pregnancies and to evaluate screening for trisomy 21 by a combination of translucency thickness and maternal age. DESIGN: Prospective screening study at 10 to 14 weeks of gestation. SETTING: Fetal Medicine Centre. POPULATION: 22,518 self-selected pregnant women at 10 to 14 weeks of gestation, including 21,477 singleton...
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