No abstract available
MeSH terms
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Animals
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Brain / metabolism
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Brain Chemistry
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Cerebral Cortex
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Methadone / metabolism*
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Morphine / metabolism*
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Rats
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Receptors, Drug
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Synaptic Membranes / metabolism*
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Tritium
Substances
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Receptors, Drug
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Tritium
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Morphine
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Methadone