RT Journal Article SR Electronic T1 Hormone replacement and breast cancer: Implications of the Iowa Women’s Health Study JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 608 OP 613 VO 66 IS 10 A1 Mark E. Mayer YR 1999 UL http://www.ccjm.org/content/66/10/608.abstract AB Amid conflicting reports about the link between hormone replacement therapy and breast cancer, the Iowa Women’s Health Study gives grounds for cautious optimism. According to the study, women on hormone replacement therapy had a higher incidence of breast cancer, but the excess cancers were of a "favorable" histologic type. This paper discusses clinical decision-making in light of the study results.