No abstract available
MeSH terms
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Action Potentials / drug effects*
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Adrenergic beta-Agonists / pharmacology
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Animals
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Calcium / pharmacology*
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Cattle
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Epinephrine / pharmacology*
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Heart / physiology*
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Heart Conduction System / drug effects*
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Manganese / pharmacology
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Membrane Potentials / drug effects
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Potassium / pharmacology*
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Sodium / pharmacology*
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Tetrodotoxin / pharmacology
Substances
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Adrenergic beta-Agonists
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Manganese
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Tetrodotoxin
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Sodium
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Potassium
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Calcium
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Epinephrine