0 Cuzick, J. Warwick, J. Pinney, E. Warren, R. M. Duffy, S. W. 2004 Tamoxifen and breast density in women at increased risk of breast cancer J Natl Cancer Inst 96 621-8 15100340 Adult, Aged, Antineoplastic Agents, Hormonal/*administration , &, dosage, Breast/drug effects/*pathology, Breast Neoplasms/*epidemiology/*prevention , &, control/radiography, Double-Blind Method, Estrogen Receptor Modulators/*administration , &, dosage http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15100340