We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe effect of estrogen vs. combined estrogen-progestogen therapy on the risk of colorectal cancer.AuthorsLin KJ; Cheung WY; Lai JY; Giovannucci ELPublicationInternational journal of cancer, 2012, Vol 130, Issue 2, p419ISSN1097-0215Publication typearticleDOI10.1002/ijc.26026