No abstract available
MeSH terms
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Adrenergic beta-Antagonists / pharmacology*
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Animals
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Atrioventricular Node / cytology
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Atrioventricular Node / drug effects*
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Carbazoles / pharmacology*
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Carvedilol
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Guinea Pigs
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In Vitro Techniques
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Membrane Potentials / drug effects
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Propanolamines / pharmacology*
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Sinoatrial Node / cytology
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Sinoatrial Node / drug effects
Substances
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Adrenergic beta-Antagonists
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Carbazoles
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Propanolamines
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Carvedilol