title: Why jump on estrogen?
authors.forename: B
authors.initials: B
authors.lastname: Gardner
mesh_terms: D001943:Breast Neoplasms / Q000139:chemically induced* / Q000453:epidemiology; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D011372:Progestins / Q000009:adverse effects; D012306:Risk
chemical_list: D011372:Progestins