No abstract available
MeSH terms
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Animals
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Cattle
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Chromatography, High Pressure Liquid
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Endorphins / analysis*
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Endorphins / pharmacology
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Guinea Pigs
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Hemoglobins / analysis*
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Humans
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In Vitro Techniques
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Muscle Contraction / drug effects
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Muscle, Smooth / drug effects
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Peptide Fragments / analysis*
Substances
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Endorphins
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Hemoglobins
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Peptide Fragments
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hemorphin 4
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hemorphin 5