No abstract available
MeSH terms
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Adrenergic beta-Agonists / pharmacology*
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Animals
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Bucladesine / pharmacology
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Catecholamines / pharmacology
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Colforsin / pharmacology
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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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Muscle Contraction / drug effects
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Muscle, Smooth / physiology*
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Theophylline / pharmacology
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Trachea / physiology
Substances
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Adrenergic beta-Agonists
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Catecholamines
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Colforsin
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Bucladesine
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Theophylline