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PDF] First-trimester risk calculation for trisomy 13, 18, and 21: comparison of the screening efficiency between 2 locally developed programs and commercial software. | Semantic Scholar
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PDF] First-trimester risk calculation for trisomy 13, 18, and 21: comparison of the screening efficiency between 2 locally developed programs and commercial software. | Semantic Scholar
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![SOLVED:The rate at which the risk of Down syndrome is changing is approximated by the function r(x)=0.004641 x^2-0.3012 x+4.9 (20 ≤x ≤45) where r(x) is measured in percentage of all births per SOLVED:The rate at which the risk of Down syndrome is changing is approximated by the function r(x)=0.004641 x^2-0.3012 x+4.9 (20 ≤x ≤45) where r(x) is measured in percentage of all births per](https://cdn.numerade.com/previews/d05f0185-f0ff-4963-9b54-8f189f5a66d3_large.jpg)
SOLVED:The rate at which the risk of Down syndrome is changing is approximated by the function r(x)=0.004641 x^2-0.3012 x+4.9 (20 ≤x ≤45) where r(x) is measured in percentage of all births per
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