No abstract available
MeSH terms
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Adult
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Atrioventricular Node / physiology*
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Atropine / pharmacology
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Cardiac Pacing, Artificial
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Female
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Heart Conduction System / physiology*
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Humans
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Isometric Contraction*
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Male
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Middle Aged
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Physical Exertion*
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Propranolol / pharmacology
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Time Factors