No abstract available
MeSH terms
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Atropine*
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Electrocardiography*
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Heart Conduction System*
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Humans
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Isoproterenol*
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Male
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Methoxamine*
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Norepinephrine*
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Pharmacology*
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Phenylephrine*
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Physical Exertion*
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Physiology*
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Sympathetic Nervous System*
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Tachycardia*
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Time*
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Vagus Nerve*
Substances
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Phenylephrine
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Atropine
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Methoxamine
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Isoproterenol
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Norepinephrine