No abstract available
MeSH terms
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Analgesia
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Animals
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Cyclic AMP / administration & dosage
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Cyclic AMP / pharmacology*
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Drug Tolerance / drug effects*
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Humans
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Male
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Mice
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Mice, Inbred Strains
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Morphine / administration & dosage
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Morphine / antagonists & inhibitors*
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Morphine Dependence*
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Naloxone
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Substance Withdrawal Syndrome / chemically induced
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Theophylline / pharmacology
Substances
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Naloxone
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Morphine
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Theophylline
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Cyclic AMP