No abstract available
Keywords:
Congenital heart disease; Costal effect; Cyanosis; High altitude.
MeSH terms
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Altitude*
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Child
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Child, Preschool
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Heart Defects, Congenital / epidemiology*
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Heart Defects, Congenital / etiology
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Humans
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Incidence
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India / epidemiology
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Infant
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Infant, Newborn
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Risk Factors