title: Effects of methylphenidate on underachieving children.
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications; D002648:Child; D002652:Child Behavior / Q000187:drug effects*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008774:Methylphenidate / Q000627:therapeutic use*; D010919:Placebos; D011581:Psychological Tests; D014477:Underachievement
chemical_list: D010919:Placebos; D008774:Methylphenidate