We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEstrogen plus progestin increased long-term risk for invasive breast cancer in postmenopausal womenAuthorsKauffman, Robert P.PublicationAnnals of Internal Medicine, 2011, Vol 154, Issue 4, pJC2ISSN0003-4819Publication typearticleDOI10.7326/0003-4819-154-4-201102150-02011