title: The Million Women Study and breast cancer.
authors.forename: Leon
authors.initials: L
authors.lastname: Speroff
mesh_terms: D001943:Breast Neoplasms / Q000139:chemically induced / Q000453:epidemiology*; D015331:Cohort Studies; D020847:Estrogen Receptor Modulators / Q000627:therapeutic use; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008327:Mammography; D008875:Middle Aged; D009652:Norpregnenes / Q000627:therapeutic use; D017698:Postmenopause; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology; D016387:Women's Health
chemical_list: D020847:Estrogen Receptor Modulators; D009652:Norpregnenes; C027385:tibolone