Prospective study evaluating performance of first-trimester combined screening for trisomy 21 using repeat sampling of maternal serum markers PAPP-A and free β-hCG (original) (raw)
2012, Ultrasound in Obstetrics & Gynecology
AI-generated Abstract
A prospective study was conducted to evaluate the performance of first-trimester combined screening for trisomy 21 by analyzing repeat sampling of maternal serum markers PAPP-A and free β-hCG. The study aims to assess the effectiveness of these biomarkers in predicting the likelihood of trisomy 21 and improving screening outcomes in early pregnancy.
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