Article
Contingent first‐trimester screening for aneuploidies with cell‐free DNA in a Danish clinical setting
22 Jun 2017
Abstract excerpt
OBJECTIVES: The primary aim of this study was to compare the screening performance for trisomy 21 (T21) between combined first-trimester screening (cFTS) with referral for invasive testing at a T21 risk ≥ 1 in 300, and contingent screening consisting of referral for invasive testing at a cFTS-T21 risk ≥ 1 in 100 and referral for cell-free DNA (cfDNA) testing at a cFTS-T21 risk between 1 in 100 and 1 in 1000....
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