No abstract available
MeSH terms
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Animals
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Depression, Chemical
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Dextromethorphan / pharmacology*
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Drug Interactions
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Drug Tolerance
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Glutamates / pharmacology*
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Humans
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Iontophoresis
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Male
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Microinjections
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Morphinans / pharmacology*
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Morphine / pharmacology*
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Morphine Dependence*
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Motor Cortex / cytology*
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Naloxone / pharmacology*
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Neurons / drug effects*
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Rats
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Somatosensory Cortex / cytology*
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Stimulation, Chemical
Substances
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Glutamates
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Morphinans
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Naloxone
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Dextromethorphan
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Morphine