title: Drugs and placebos: effects of caffeine on cognitive performance.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology*; D003071:Cognition / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000187:drug effects; D010919:Placebos; D013404:Suggestion
chemical_list: D010919:Placebos; D002110:Caffeine