No abstract available
MeSH terms
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Acetylcholine / metabolism
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Action Potentials / drug effects
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Animals
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Depression, Chemical
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Electric Stimulation
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Guinea Pigs
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Ileum / drug effects
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In Vitro Techniques
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Morphine / pharmacology*
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Muscle, Smooth / drug effects*
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Neuroeffector Junction / drug effects*
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Synaptic Transmission / drug effects*