No abstract available
MeSH terms
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Age Factors
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Arthritis / epidemiology
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Child, Preschool
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Humans
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Incidence
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Infant
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Myocarditis / epidemiology*
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Myocarditis / etiology
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Rheumatic Fever / complications
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Rheumatic Fever / epidemiology*
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Rheumatic Heart Disease / epidemiology*