Before revision: Fetal cell-free DNA (cfDNA) /Non-invasive prenatal test (NIPT) Fetal cell-free DNA testing allows for the detection of apoptotic fetal cells and fetal DNA circulating in maternal blood for the noninvasive diagnosis of fetal aneuploidy.
After revision: Placental acellular DNA (pa-DNA) Placental acellular (fetal cell-free ) DNA testing (pa-DNA) allows for the detection of apoptotic placental cells and placental DNA circulating in maternal blood for the noninvasive diagnosis of fetal aneuploidy.