No abstract available
MeSH terms
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Acetylcholine / analysis
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Acetylcholine / physiology*
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Acupuncture Therapy*
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Animals
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Brain Chemistry
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Electric Stimulation Therapy*
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Enkephalin, Methionine / analysis
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Enkephalin, Methionine / physiology*
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Female
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Male
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Pain / physiopathology*
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Radioimmunoassay
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Rats
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Sensory Thresholds
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Transcutaneous Electric Nerve Stimulation*
Substances
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Enkephalin, Methionine
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Acetylcholine