title: Estrogen replacement therapy and risk of breast cancer: results of two meta-analyses.
authors.forename: R S
authors.initials: RS
authors.lastname: Vasan
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology*; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015201:Meta-Analysis as Topic; D012307:Risk Factors