0 Tamimi, R. M. Byrne, C. Colditz, G. A. Hankinson, S. E. 2007 Endogenous hormone levels, mammographic density, and subsequent risk of breast cancer in postmenopausal women J Natl Cancer Inst 99 1178-87 17652278 Adipose Tissue/radiography, Age Factors, Aged, Aged, 80 and over, Breast/*pathology, Breast Neoplasms/blood/chemistry/*epidemiology/radiography, Case-Control Studies, Cohort Studies, Confidence Intervals, Estradiol/*blood, Estrogens, Female, Humans, *Mamm http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=17652278