Normative weight-adjusted models for the median levels of first trimester serum biomarkers for trisomy 21 screening in a specific ethnicity | PLOS ONE
Determination of the median values of maternal serum free β-hCG, PAPP-A and fetal NT measurement at 11-13 weeks in relation to
displays the influences of free β-hCG collected during second trimester... | Download Scientific Diagram
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