We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleImmortal Time Bias in Pharmacoepidemiology.AuthorsSuissa, SamyPublicationAmerican Journal of Epidemiology, 2008, Vol 167, Issue 4, p492ISSN0002-9262Publication typearticleDOI10.1093/aje/kwm324