No abstract available
Publication types
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Research Support, Non-U.S. Gov't
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Review
MeSH terms
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Analgesia / methods*
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Analgesics / therapeutic use*
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Chronic Disease
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Clinical Trials as Topic / methods*
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Clinical Trials as Topic / standards
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Humans
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Low Back Pain / drug therapy*
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Low Back Pain / physiopathology
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Outcome Assessment, Health Care / methods
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Outcome Assessment, Health Care / standards
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Pain, Intractable / drug therapy*
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Pain, Intractable / physiopathology