No abstract available
MeSH terms
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Abnormalities, Multiple / genetics
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Child
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Child, Preschool
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Chromosome Aberrations*
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Chromosomes, Human, 16-18
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Chromosomes, Human, 6-12 and X
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Down Syndrome / genetics
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Homozygote
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Humans
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Infant
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Karyotyping
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Phenotype
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Polymorphism, Genetic*
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Sex Chromosomes
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Syndrome