No abstract available
MeSH terms
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Adrenal Medulla / physiology*
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Animals
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Catecholamines / metabolism
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Cattle
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Chromaffin Granules / physiology
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Endorphins / pharmacology
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Receptors, Opioid / physiology*
Substances
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Catecholamines
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Endorphins
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Receptors, Opioid