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Article

Maternal age‐ and gestation‐specific risk for trisomy 21

1 Mar 1999

Abstract excerpt

OBJECTIVE: To provide estimates of maternal age- and gestational age-related risks for trisomy 21. METHODS: The prevalence of trisomy 21 was examined in 57,614 women who had fetal karyotyping at 9-16 weeks of gestation for the sole indication of maternal age of 35 years or more. On the basis of the maternal age distribution and the reported maternal age-related risk for trisomy 21 at birth, the expected number of...

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Share to Assisted Reproductive Technology and Twin Pregnancy
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PMID: 10204206
DOI: 10.1046/j.1469-0705.1999.13030167.x

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