@article{Ursin2004,
author = {Ursin, G. and Bernstein, L. and Wang, Y. and Lord, S.J. and Deapen, D. and Liff, J.M. and Norman, S.A. and Weiss, l.K. and Daling, J.R. and Marchbanks, P.A. and Malone, K.E. and Folger, S.G. and McDonald, J.A. and Burkman, R.T. and Simon, M.S. and Strom, B.L. and Spirtas, R.},
title= {Reproductive factors and risk of breast carcinoma in a study of White and African-American women},
year = {2004},
doi = {10.1002/cncr.20373},
journal = {Cancer},
volume = {101},
pages = {353--362},
}