Leipold, B Opioid activity of delta O-endorphin in the guinea pig ileum. [electronic resource] - Hoppe-Seyler's Zeitschrift fur physiologische Chemie Oct 1979 - 1453-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0018-4888 Standard No.: 10.1515/bchm2.1979.360.2.1453 doi Subjects--Topical Terms: AnimalsBinding, CompetitiveCattleEndorphins--isolation & purificationEnkephalins--metabolismGuinea PigsIleum--metabolismKineticsMorphine--metabolismPituitary Gland--analysisReceptors, Opioid--metabolismSwine