(Q51875821)
Statements
Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. (English)
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Kypros H Nicolaides
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Karl O Kagan
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Dave Wright
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Catalina Valencia
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10 June 2008
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23
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9
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1968-1975
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Identifiers
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