We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRefining the attention deficit hyperactivity disorder phenotype for molecular genetic studies.AuthorsThapar A; Langley K; O'donovan M; Owen MPublicationMolecular psychiatry, 2006, Vol 11, Issue 8, p714ISSN1359-4184Publication typearticleDOI10.1038/sj.mp.4001831