Buzas, B Mu and delta opioid receptor gene expression after chronic treatment with opioid agonist. [electronic resource] - Neuroreport Jun 1996 - 1505-8 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0959-4965 Standard No.: 10.1097/00001756-199606170-00013 doi Subjects--Topical Terms: AnimalsBrain--drug effectsCell LineEnkephalin, Leucine--analogs & derivativesGene Expression Regulation--drug effectsGenetic CodeMalePolymerase Chain ReactionRNA, Messenger--biosynthesisRatsRats, Sprague-DawleyReceptors, Opioid, delta--agonistsReceptors, Opioid, mu--agonists