No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Animals
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Arrhythmias, Cardiac / physiopathology
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Dogs
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Electric Stimulation
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Electrocardiography*
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Epinephrine / pharmacology
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Heart / physiology*
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Heart Ventricles
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Myocardial Contraction* / drug effects
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Norepinephrine / pharmacology
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Sympathetic Nervous System / physiology*
Substances
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Norepinephrine
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Epinephrine