No abstract available
MeSH terms
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Child
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Child, Preschool
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Down Syndrome / complications
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Down Syndrome / genetics*
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Down Syndrome / mortality*
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Heart Defects, Congenital / epidemiology
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Heart Defects, Congenital / etiology
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Heart Defects, Congenital / genetics
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Heart Defects, Congenital / mortality
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Humans
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Infant
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Infant, Newborn
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Kaplan-Meier Estimate
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Mosaicism*
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United States / epidemiology