No abstract available
MeSH terms
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Adult
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Chorionic Villi Sampling
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Chromosome Deletion
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Chromosomes, Human, Pair 7
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Crown-Rump Length
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Female
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Fetal Heart / abnormalities
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Fetal Heart / diagnostic imaging
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Fetofetal Transfusion
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Humans
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Karyotyping
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Nuchal Translucency Measurement*
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Pregnancy
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Pregnancy Reduction, Multifetal
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Pregnancy, Twin / genetics*
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Twins, Monozygotic / genetics*