title: [Estrogen plus gestagen especially risky. Breast cancer risk doubled].
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology*; D018849:Controlled Clinical Trials as Topic; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D004967:Estrogens / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D005260:Female; D006801:Humans; D017258:Medroxyprogesterone Acetate / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D010051:Ovarian Neoplasms / Q000453:epidemiology; D010919:Placebos; D012306:Risk; D013997:Time Factors; D014594:Uterine Neoplasms / Q000453:epidemiology
chemical_list: D004967:Estrogens; D010919:Placebos; D017258:Medroxyprogesterone Acetate