Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleConditions for confounding of interactions.AuthorsLiu, Aihua; Abrahamowicz, Michal; Siemiatycki, JackPublicationPharmacoepidemiology & Drug Safety, 2016, Vol 25, Issue 3, p287ISSN1053-8569Publication typeArticleDOI10.1002/pds.3924