No abstract available
MeSH terms
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Amino Acid Sequence
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Animals
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Guinea Pigs
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Ileum / drug effects
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Ileum / physiology
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In Vitro Techniques
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Molecular Sequence Data
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Muscle Contraction / drug effects*
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Muscle, Smooth / drug effects
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Muscle, Smooth / physiology
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Oligopeptides / chemical synthesis*
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Oligopeptides / pharmacology*
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Receptors, Opioid, mu / metabolism*
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Structure-Activity Relationship
Substances
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Oligopeptides
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Receptors, Opioid, mu
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deltorphin I, Ala(2)-