However, at present the analysis is too cumbersome and expensive for clinical use. "At this moment, it would probably cost $200,000 per case," says Lo. "Cutting costs will be very important." ...
Still, Bianchi believes that the bioinformatics involved in reliably distinguishing fetal from maternal DNA sequences from a blood sample may prove impractical for many clinical labs. She also points out that the latest estimates put the risk of miscarriage associated with amniocentesis as low as 0.06 per cent. "At some point, someone's going to need to do an elegant cost-benefit analysis," she says.
my unborn son's y-chromosome in my spit sample a few years ago ... In other words, a tiny bit of my unborn child's DNA was not just in my blood, as this FPP is talking about, but was even observable in my saliva
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