No abstract available
MeSH terms
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Health Benefit Plans, Employee / statistics & numerical data*
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Health Care Costs / trends*
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Health Maintenance Organizations / economics
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Health Maintenance Organizations / statistics & numerical data*
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Health Maintenance Organizations / trends
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Humans
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Preferred Provider Organizations / economics
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Preferred Provider Organizations / statistics & numerical data*
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Preferred Provider Organizations / trends
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Provider-Sponsored Organizations / economics
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Provider-Sponsored Organizations / statistics & numerical data*
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Provider-Sponsored Organizations / trends
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United States