Termination of treatment with an amphetamine-barbiturate mixture at different stages of training.
D000654:Amobarbital / Q000008:administration & dosage / Q000494:pharmacology*; D000661:Amphetamine / Q000008:administration & dosage / Q000494:pharmacology*; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D003216:Conditioning, Operant / Q000187:drug effects*; D004327:Drinking Behavior / Q000187:drug effects; D005260:Female; D051381:Rats; D012055:Reinforcement Schedule; D012201:Reward; D012965:Sodium Chloride / Q000494:pharmacology; D013997:Time Factors; D014867:Water
D014867:Water; D012965:Sodium Chloride; D000661:Amphetamine; D000654:Amobarbital