Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleConfounding by drug formulary restriction in pharmacoepidemiologic research.AuthorsFilion, Kristian B.; Eberg, Maria; Ernst, PierrePublicationPharmacoepidemiology & Drug Safety, 2016, Vol 25, Issue 3, p278ISSN1053-8569Publication typeArticleDOI10.1002/pds.3923