No abstract available
Keywords:
congenital heart disease; echocardiography.
Publication types
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Clinical Trial
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Child
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Child, Preschool
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China / epidemiology
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China / ethnology
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Female
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Heart Defects, Congenital / epidemiology*
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Heart Defects, Congenital / ethnology*
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Humans
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Male
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Prevalence
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Rural Population*