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Article

Absent nasal bone in the prenatal detection of fetuses with trisomy 21 in a high-risk population

1 May 2003

Abstract excerpt

OBJECTIVE: To estimate the usefulness of absent nasal bone by ultrasound in the prenatal detection of second-trimester fetuses with trisomy 21. METHODS: This was a matched case-control study of sonograms from January 1, 1997 to April 30, 2002. Genetic sonograms and facial profile pictures of all fetuses that were subsequently proven to have trisomy 21 were reviewed (study group). A control group was identified...

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PMID: 12738148
DOI: 10.1016/s0029-7844(03)00170-4

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