Noninvasive prenatal diagnosis of early onset primary dystonia I in maternal plasma

Abstract excerpt

OBJECTIVE: The genetic trait of a fetus may be determined early on in pregnancy using cell-free fetal DNA extracted from the plasma of pregnant women. The challenges for noninvasive diagnosis include the variable but still low amount of cell-free fetal DNA in the first trimester (57-761 gE/mL) and the competing high background of maternal DNA in the plasma ( approximately 90%). Prenatal detection of a paternally...

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