作者: Irma H. Russo , Gloria Calaf , Jose Russo
DOI: 10.1007/978-94-011-3742-3_3
关键词: Hormone 、 Breast cancer 、 Breast tissue 、 Protective factor 、 Medicine 、 Mammary gland 、 Menopause 、 Incidence (epidemiology) 、 Physiology 、 Pregnancy
摘要: Breast cancer is increasing in incidence most Western countries [1]. The risk factors predisposing to its development include early menarche, late pregnancy, nulliparity and menopause [2,3], but so far, only one physiologic protective factor has been identified. This an full-term which reduces four-fold the of developing breast [4,5].