Article
ACOG Practice Bulletin No. 77: Screening for Fetal Chromosomal Abnormalities
1 Jan 2007
Abstract excerpt
In the last decade, numerous markers and strategies for Down syndrome screening have been developed. Algorithms that combine ultrasound and serum markers in the first and second trimesters have been evaluated. Furthermore, the practice of using age cutoffs to determine whether women should be offered screening or invasive diagnostic testing has been challenged. The purpose of this document is to 1) present and...
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