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C7β-Methyl Analogues of the Orvinols: The Discovery of Kappa Opioid Antagonists with Nociceptin/Orphanin FQ Peptide (NOP) Receptor Partial Agonism and Low, or Zero, Efficacy at Mu Opioid Receptors | Journal of Medicinal
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Kappa', Japanese mythical creature, clay stop-motion model designed and created by InkyPunk | Stop motion, Japanese mythical creatures, Disney characters
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