Hormone replacement therapy in relation to breast carcinoma incidence rate ratios: a prospective Danish cohort study.


BACKGROUND The goal of the current study was to investigate the relation between hormone replacement therapy (HRT) and breast carcinoma in a prospective study cohort. Particular attention was paid to the type of HRT used and to the association of HRT type with estrogen receptor status and tumor histology. METHODS Between 1993 and 1997, a total of 29,875… (More)