- Risk of female breast cancer associated with serum polychlorinated biphenyls and 1,1-dichloro-2,2'-bis(p-chlorophenyl)ethylene. Zheng, T., Holford, T.R., Mayne, S.T., Tessari, J., Ward, B., Carter, D., Owens, P.H., Boyle, P., Dubrow, R., Archibeque-Engle, S., Dawood, O., Zahm, S.H. Cancer Epidemiol. Biomarkers Prev. (2000)