No abstract available
MeSH terms
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Acetylcholine / metabolism
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Aging / physiology*
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Animals
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Avoidance Learning / drug effects*
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Cerebrovascular Circulation / drug effects
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Dihydroergotoxine / pharmacology*
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Male
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Rats
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Receptors, Serotonin / drug effects
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Receptors, Serotonin / metabolism
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Secologanin Tryptamine Alkaloids*
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Yohimbine / analogs & derivatives*
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Yohimbine / pharmacology
Substances
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Receptors, Serotonin
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Secologanin Tryptamine Alkaloids
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Dihydroergotoxine
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Yohimbine
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raubasine
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Acetylcholine