No abstract available
MeSH terms
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Adrenergic beta-Antagonists / administration & dosage
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Adrenergic beta-Antagonists / pharmacology
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Animals
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Brain Stem / physiology*
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Electric Stimulation
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Excitatory Amino Acids / administration & dosage
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Excitatory Amino Acids / pharmacology
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Female
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Male
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Mesencephalon / physiology*
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Microinjections
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Periaqueductal Gray / physiology*
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Propranolol / administration & dosage
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Propranolol / pharmacology
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Rats
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Rats, Sprague-Dawley
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Respiratory Physiological Phenomena* / drug effects
Substances
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Adrenergic beta-Antagonists
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Excitatory Amino Acids
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Propranolol