No abstract available
MeSH terms
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Chromosome Aberrations*
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Congenital Abnormalities / epidemiology
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Congenital Abnormalities / genetics*
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Epidemiologic Methods
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Georgia
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Heart Defects, Congenital / epidemiology
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Heart Defects, Congenital / genetics*
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Humans
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Infant, Newborn
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Trisomy