Chang, K J Multiple opiate receptors. Enkephalins and morphine bind to receptors of different specificity. [electronic resource] - The Journal of biological chemistry Apr 1979 - 2610-8 p. digital Publication Type: Journal Article ISSN: 0021-9258 Subjects--Topical Terms: AnimalsBinding, CompetitiveBrain--metabolismCell Membrane--metabolismEndorphins--metabolismEnkephalins--metabolismKineticsMorphine--metabolismRatsReceptors, Opioid--metabolismSubstrate Specificity