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Precise bivariant normal distributions of maternal serum AFP and free bHCG for trisomy 21 (T21) biochemical screening

โœ Scribed by L Chik; K Spencer; MP Johnson; M Ayoub; E Krivchenia; MP Dombrowski; MI Evans


Book ID
113984916
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
113 KB
Volume
176
Category
Article
ISSN
1097-6868

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In a study of 2923 normal pregnancies and 203 pregnancies affected by trisomy 21 we have shown a signiยฎcant difference in the median MoM of the markers: fetal nuchal translucency, maternal serum free b-hCG and PAPP-A in the presence of a female fetus compared with a male fetus. For maternal serum fr