title: Attention deficit hyperactivity disorder: a worldwide concern.
authors.forename: Joseph
authors.initials: J
authors.lastname: Biederman
authors.forename: Stephen V
authors.initials: SV
authors.lastname: Faraone
mesh_terms: D000293:Adolescent; D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000453:epidemiology*; D002648:Child; D039721:Diagnostic and Statistical Manual of Mental Disorders; D034462:Dissent and Disputes; D014943:Global Health; D017408:Guidelines as Topic; D006801:Humans; D033181:Information Dissemination / Q000379:methods; D007390:International Agencies; D038801:International Classification of Diseases; D018156:Journalism, Medical / Q000592:standards; D008604:Mental Health Associations; D015995:Prevalence; D011569:Psychiatric Status Rating Scales