title: Risk factors for breast cancer at various ages.
abstract: A brief overview is presented of breast cancer risk factors with particular reference to the time in a woman's life when they seem to operate. High incidence of the disease in Western societies is associated with early ovarian maturation and late onset of reproduction. In biologic terms this means proliferation without differentiation of breast cells over a long period of time.
authors.forename: F
authors.initials: F
authors.lastname: de Waard
mesh_terms: D000328:Adult; D000367:Age Factors; D001943:Breast Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D012307:Risk Factors