No abstract available
Publication types
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Evaluation Study
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Analgesics, Opioid / economics
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Analgesics, Opioid / therapeutic use
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Drug Costs*
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Female
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Humans
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Male
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Pain Measurement
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Placebo Effect*
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Placebos / economics
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Placebos / therapeutic use
Substances
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Analgesics, Opioid
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Placebos