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July 23, 2010Ultrasound in Obstetrics and Gynecology119 citations

First‐trimester combined screening for trisomy 21 at 7–14 weeks' gestation

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DWD. WrightKSKevin SpencerKKKao K

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Abstract

The performance of first-trimester biochemical screening for trisomy 21 is best at 9-10 weeks rather than at 7-8 or 11-14 weeks.

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Wright et al. (2010) studied this question.

synapsesocial.com/papers/69dbd8d8e6ab964fb0837103https://doi.org/10.1002/uog.7755
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Appropriate biochemical parameters in first-trimester screening for Down syndrome1999 · 147 citations
  2. 2Fetal Size and Dating: Charts Recommended for Clinical Obstetric Practice2009 · 208 citations
  3. 3Temporal Changes in Maternal Serum Biochemical Markers of Trisomy 21 across the First and Second Trimester of Pregnancy2002 · 80 citations
  4. 4Applied Regression Analysis2005 · 18,062 citations
  5. 5Assessment of fetal anatomy at the 11–14‐week ultrasound examination2004 · 173 citations