No abstract available
Publication types
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Letter
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Research Support, N.I.H., Extramural
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Abstracting and Indexing / methods
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Abstracting and Indexing / standards*
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Cross-Sectional Studies
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Humans
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Outcome Assessment, Health Care / methods
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Outcome Assessment, Health Care / standards*
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Randomized Controlled Trials as Topic / methods
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Randomized Controlled Trials as Topic / standards*