Release of endogenous opioid peptides in guinea-pig duodenum and ileum

Abstract
Keywords:
Animals, Chemical, Depression, Duodenum/drug effects/metabolism, Endorphins/metabolism, Guinea Pigs, Ileum/drug effects/metabolism, In Vitro Techniques, Naloxone/pharmacology, Opioid peptides release, Electrical stimulation, Myenteric plexus
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Letters to the Editors