title: Pregnancy hormone levels linked to HR-negative breast cancer risk.
authors: Carrie
authors: C
authors: Printz
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology* / Q000378:metabolism; D004958:Estradiol / Q000378:metabolism*; D005260:Female; D006801:Humans; D009376:Neoplasms, Hormone-Dependent / Q000453:epidemiology*; D011247:Pregnancy; D011374:Progesterone / Q000378:metabolism*; D011960:Receptors, Estrogen / Q000032:analysis; D012307:Risk Factors
chemical_list: D011960:Receptors, Estrogen; D011374:Progesterone; D004958:Estradiol