We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHidden in plain sight.AuthorsBresnahan, Michaeline; Li, Guohua; Susser, EzraPublicationInternational journal of epidemiology, 2009, Vol 38, Issue 5, p1172ISSN1464-3685Publication typeJournal ArticleDOI10.1093/ije/dyp293