title: The Million Women Study and breast cancer.
authors.forename: Jo
authors.initials: J
authors.lastname: Marsden
authors.forename: Roger
authors.initials: R
authors.lastname: A'Hern
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology*; D016021:Epidemiologic Studies; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011795:Surveys and Questionnaires; D006113:United Kingdom / Q000453:epidemiology