No abstract available
MeSH terms
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Adult
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Analgesics, Opioid* / therapeutic use
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Back Pain* / diagnosis
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Back Pain* / drug therapy
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Chronic Pain* / diagnosis
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Chronic Pain* / drug therapy
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Drug Prescriptions* / standards
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Humans
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Male
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Opioid-Related Disorders* / prevention & control
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Pain Management* / methods
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Pain Measurement