title: Breast cancer risk and history of being breast-fed.
authors.forename: Shinya
authors.initials: S
authors.lastname: Ito
mesh_terms: D001722:Birth Order; D001942:Breast Feeding / Q000009:adverse effects*; D001943:Breast Neoplasms / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D008895:Milk, Human / Q000737:chemistry; D018570:Risk Assessment; D012307:Risk Factors