Hankinson, Susan E.Willett, WalterManson, JoAnn E.Colditz, Graham A.Hunter, David J.Spiegelman, DonnaBarbieri, Robert L.Speizer, Frank E.2019-09-211998Hankinson, Susan E., Walter C. Willett, JoAnn E. Manson, Graham A. Colditz, David J. Hunter, Donna Spiegelman, Robert L. Barbieri, and Frank E. Speizer. 1998. “Plasma Sex Steroid Hormone Levels and Risk of Breast Cancer in Postmenopausal Women.” JNCI: Journal of the National Cancer Institute 90 (17): 1292–99. https://doi.org/10.1093/jnci/90.17.1292.0027-88740198-01571460-2105http://nrs.harvard.edu/urn-3:HUL.InstRepos:41384665en-USPlasma Sex Steroid Hormone Levels and Risk of Breast Cancer in Postmenopausal WomenJournal Article2019-09-2110.1093/jnci/90.17.1292