title: The characteristics of situationally and pervasively hyperactive children: implications for syndrome definition.
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000523:psychology*; D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis; D007360:Intelligence; D007859:Learning Disabilities / Q000175:diagnosis; D008297:Male; D011379:Prognosis; D012923:Social Class; D012931:Social Environment