title: Resumption of morphine self-administration by ex-addict rats: an attempt to modify tendencies to relapse.
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D004327:Drinking Behavior / Q000187:drug effects; D006801:Humans; D008297:Male; D008691:Methadone / Q000494:pharmacology / Q000627:therapeutic use; D009020:Morphine; D009021:Morphine Dependence; D011803:Quinine; D051381:Rats; D012008:Recurrence; D012054:Reinforcement, Psychology; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control; D013649:Taste
chemical_list: D009020:Morphine; D011803:Quinine; D008691:Methadone