title: Persistent potency of a secondary (conditioned) reinforcer following withdrawal of morphine from physically dependent rats.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D001562:Benzimidazoles / Q000494:pharmacology*; D003212:Condiments; D004327:Drinking Behavior; D006801:Humans; D009021:Morphine Dependence; D051381:Rats; D012054:Reinforcement, Psychology; D012492:Salts; D013375:Substance Withdrawal Syndrome
chemical_list: D001562:Benzimidazoles; D012492:Salts