No abstract available
MeSH terms
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Abnormalities, Multiple / diagnostic imaging
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Abnormalities, Multiple / genetics
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Adult
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Amniocentesis
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Chromosomes, Human, Pair 4 / genetics*
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Diseases in Twins / genetics*
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Female
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Humans
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Mosaicism
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Pregnancy
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Trisomy / diagnosis*
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Twins, Monozygotic / genetics*
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Ultrasonography, Prenatal