title: Induced abortion as an independent risk factor for breast cancer.
authors.forename: M
authors.initials: M
authors.lastname: Blettner
authors.forename: J
authors.initials: J
authors.lastname: Chang-Claude
authors.forename: T
authors.initials: T
authors.lastname: Scheuchenpflug
mesh_terms: D000028:Abortion, Induced / Q000009:adverse effects*; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D015201:Meta-Analysis as Topic; D016017:Odds Ratio; D012307:Risk Factors