No abstract available
MeSH terms
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Adolescent
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Adult
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Child
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Child, Preschool
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Family Practice / statistics & numerical data
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Health Maintenance Organizations / statistics & numerical data
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Health Services Needs and Demand / statistics & numerical data
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Humans
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Infant
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Insurance, Health
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Managed Care Programs / statistics & numerical data
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Models, Statistical
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Office Visits / statistics & numerical data
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Pediatrics / statistics & numerical data*
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Physicians / statistics & numerical data
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Physicians / supply & distribution
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Population
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United States / epidemiology
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Workforce