title: Ethanol as a reinforcer: effects of fixed-ratio size and food deprivation.
mesh_terms: D000428:Alcohol Drinking; D000818:Animals; D001522:Behavior, Animal; D003216:Conditioning, Operant; D004327:Drinking Behavior; D000431:Ethanol; D005508:Food Deprivation; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule; D012527:Satiation; D014867:Water
chemical_list: D014867:Water; D000431:Ethanol