title: The effects of d- and l- amphetamine on fixed-interval and fixed-ratio behavior in tolerant and nontolerant rats.
mesh_terms: D000661:Amphetamine / Q000494:pharmacology*; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D003429:Cross Reactions; D003913:Dextroamphetamine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance; D005508:Food Deprivation; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule
chemical_list: D000661:Amphetamine; D003913:Dextroamphetamine