No abstract available
MeSH terms
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Asthma / physiopathology
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Atropine / pharmacology*
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Bronchial Spasm / etiology*
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Cardiovascular System / drug effects
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Child
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Humans
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Phentolamine / pharmacology*
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Physical Exertion*
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Propranolol / pharmacology*
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Pulse
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Respiration / drug effects*
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Respiratory Function Tests
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Sodium Chloride / pharmacology
Substances
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Sodium Chloride
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Atropine
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Propranolol
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Phentolamine