Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHow impaired are children and adolescents by mental health problems? Results of the BELLA study.AuthorsWille N; Bettge S; Wittchen H; Ravens-Sieberer UPublicationEuropean Child & Adolescent Psychiatry, 2008, Vol 17, p42ISSN1018-8827Publication typearticleDOI10.1007/s00787-008-1005-0