No abstract available
MeSH terms
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Analgesics / administration & dosage
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Chronic Pain / diagnosis
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Chronic Pain / drug therapy*
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Drug Delivery Systems / methods
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Drug Delivery Systems / standards*
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Humans
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Injections, Spinal / methods
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Injections, Spinal / standards*
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Off-Label Use / standards*
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Physician's Role*
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Practice Guidelines as Topic / standards*
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United States / epidemiology
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United States Food and Drug Administration / standards