title: Multiple births and breast cancer.
authors.forename: C
authors.initials: C
authors.lastname: La Vecchia
authors.forename: E
authors.initials: E
authors.lastname: Negri
authors.forename: C
authors.initials: C
authors.lastname: Braga
authors.forename: S
authors.initials: S
authors.lastname: Fanceschi
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010298:Parity