No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Aging / physiology*
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Animals
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Animals, Newborn
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Dogs
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Electrocardiography / methods
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Heart / growth & development
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Heart / innervation*
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Heart Rate / physiology*
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Parasympathetic Nervous System / physiology*
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Sympathetic Nervous System / physiology*