title: Abortion, breast cancer, and epidemiology.
authors.forename: P
authors.initials: P
authors.lastname: Hartge
mesh_terms: D000028:Abortion, Induced / Q000009:adverse effects*; D015982:Bias; D001943:Breast Neoplasms / Q000453:epidemiology / Q000209:etiology*; D015986:Confounding Factors, Epidemiologic; D003718:Denmark / Q000453:epidemiology; D036262:Empirical Research; D005260:Female; D006801:Humans; D038622:Internationality; D011247:Pregnancy; D012042:Registries; D012306:Risk