We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEnhancing validity in co-occurring disorders treatment research.AuthorsMcHugo GJ; Drake RE; Brunette MF; Xie H; Essock SM; Green AIPublicationSchizophrenia bulletin, 2006, Vol 32, Issue 4, p655ISSN0586-7614Publication typearticleDOI10.1093/schbul/sbl009