No abstract available
MeSH terms
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Acetylcholine / blood
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Adaptation, Physiological / drug effects*
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Age Factors
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Animals
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Atropine / pharmacology
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Dogs
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Electric Stimulation
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Electrocardiography
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Female
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Heart / physiology*
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Male
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Neostigmine / pharmacology
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Sympathetic Nervous System / physiology*
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Time Factors
Substances
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Neostigmine
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Atropine
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Acetylcholine