No abstract available
MeSH terms
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Analgesics, Opioid / administration & dosage*
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Analgesics, Opioid / therapeutic use*
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Chorea / chemically induced*
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Dose-Response Relationship, Drug
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Humans
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Low Back Pain / drug therapy*
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Methadone / administration & dosage*
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Methadone / therapeutic use*
Substances
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Analgesics, Opioid
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Methadone