No abstract available
MeSH terms
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Adolescent
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Age Factors
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Attention Deficit Disorder with Hyperactivity / epidemiology*
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Attention Deficit and Disruptive Behavior Disorders / epidemiology*
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Child
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Child, Preschool
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Conduct Disorder / epidemiology*
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Demography / statistics & numerical data*
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Ethnicity / statistics & numerical data
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Female
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Humans
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Male
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Racial Groups / statistics & numerical data
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Sex Factors
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United States / epidemiology