In this study, chromosome-selective sequencing of cell-free DNA separated all cases of trisomy 21 and 98% of trisomy 18 from euploid pregnancies.
American journal of obstetrics and gynecology
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, King's College, University of London, London, England, UK.
Am J Obstet Gynecol. 2012 Apr;206(4):322.e1-5
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