... RES E AR C H Open Access Breast cancer risk in relation to occupations with exposure to carcinogens and endocrine disruptors: a Canadian case–control study James T Brophy1,2*, Margaret M Keith1,2, ... possible links between breast cancer risk and occupation, particularly in farming and manufacturing, as well as to examine the impacts of early agricultural exposures, and exposure effects that arespecific ... Hormonal Factors in Breast Cancer: Breast cancer and breastfeeding: collaborative reanalysis of individual data from 47epidemiological studies in 30 countries, including 50302 women with breast cancer...