Methods of prenatal diagnosis for chromosomal abnormalities: The advantages Posted on August 16, 2017September 11, 2017 by admin Stefos T Posted in 2005 Volume 4 – Issue 2 Tagged aFP, amniocentesis, chorionic villus sampling, chromosomal abnormalities, nuchal translucency, PAPP-A, prenatal diagnosis, ultrasonography, β-HCG