Cell-free fetal DNA testing, which measures the relative amount of free fetal DNA in a pregnant woman’s blood, is a new screening test that indicates the risk of Down syndrome (trisomy 21), researchers report.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vOTzpSZ9NTg/150203104110.htm
Non-invasive first trimester blood test reliably detects Down’s syndrome
3 febrero 2015
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