Sonography Markers of Chromosomal Abnormality in Second Trimester

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The influence of parity and gravidity on first trimester markers of chromosomal abnormality.

We have studied changes in first trimester fetal nuchal translucency (NT) and maternal serum free beta-hCG and PAPP-A with gravidity and parity in 3252 singleton pregnancies unaffected by chromosomal abnormality or major pregnancy complications. We have shown that gravidity and parity is associated with a small but progressive decrease in fetal NT and a small but progressive increase in free be...

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Role of second-trimester genetic sonography after Down syndrome screening.

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ژورنال

عنوان ژورنال: Donald School Journal of Ultrasound in Obstetrics and Gynecology

سال: 2010

ISSN: 0973-614X,0975-1912

DOI: 10.5005/jp-journals-10009-1154