title: Attention deficit hyperactivity disorder.
authors.affiliation: Division of General Pediatrics, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA, USA. guevara@email.chop.edu
authors.forename: J P
authors.initials: JP
authors.lastname: Guevara
authors.forename: M T
authors.initials: MT
authors.lastname: Stein
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy; D002648:Child; D002675:Child, Preschool; D015897:Comorbidity; D019317:Evidence-Based Medicine; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology; D015995:Prevalence; D011379:Prognosis; D018570:Risk Assessment / Q000379:methods