title: ERT and breast cancer.
authors.forename: M A
authors.initials: MA
authors.lastname: Boyd
mesh_terms: D001943:Breast Neoplasms / Q000628:therapy*; D015984:Causality; D000075202:Contraindications; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D012107:Research Design; D018570:Risk Assessment