title: The effect of methylphenidate (ritalin) on sustained attention in hyperactive children.
mesh_terms: D000293:Adolescent; D001288:Attention / Q000187:drug effects*; D002648:Child; D002652:Child Behavior / Q000187:drug effects; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000188:drug therapy*; D008297:Male; D008774:Methylphenidate / Q000494:pharmacology*; D010919:Placebos; D011581:Psychological Tests; D013647:Task Performance and Analysis
chemical_list: D010919:Placebos; D008774:Methylphenidate