No abstract available
MeSH terms
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Female
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Fetus
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Hernia, Umbilical* / diagnostic imaging
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Hernia, Umbilical* / genetics
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Humans
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Neck
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Nuchal Translucency Measurement*
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Polymerase Chain Reaction
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Pregnancy
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Pregnancy Trimester, First
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Trisomy / diagnosis
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Trisomy / genetics
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Trisomy 18 Syndrome / diagnosis
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Trisomy 18 Syndrome / genetics
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Ultrasonography, Prenatal