(Q51870694)
Statements
Screening for trisomy 18 by maternal age, fetal nuchal translucency, free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A. (English)
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K O Kagan
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D Wright
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I Pandeva
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K H Nicolaides
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1 September 2008
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32
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4
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488-492
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Identifiers
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