No abstract available
MeSH terms
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Aminophylline / administration & dosage
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Aminophylline / antagonists & inhibitors
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Aminophylline / pharmacology*
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Animals
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Blood Pressure / drug effects
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Dogs
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Heart Rate / drug effects
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Injections
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Propranolol / pharmacology
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Sinoatrial Node / drug effects*
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Stimulation, Chemical
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Tetrodotoxin / pharmacology
Substances
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Aminophylline
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Tetrodotoxin
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Propranolol