title: Prevalence estimates of hyperactivity in schoolchildren.
mesh_terms: D002140:California; D002648:Child; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000145:classification / Q000188:drug therapy / Q000453:epidemiology*; D008297:Male; D010290:Parents; D010820:Physicians; D012574:Schools