Breast cancer risk among women with long-standing lactation: a case-control study in Northern Tanzania

Irmgard Jordan, Antje Hebestreit, Britta Swai & Michael B Krawinkel
Introduction: Breast cancer is the leading cause of death among women worldwide. Studies in industrialised countries identified age at menarche, age at first full-term pregnancy, and especially lactation as determining factors in the aetiology of breast cancer. Our study investigates for the first time[for full text, please go to the a.m. URL]