Estrogens and obesity in familial breast cancer: Lisa Begg, R.N., Dr.P.H.,∗ Lewis H. Kuller, M.D., Dr.P.H.,∗ James P. Gutai, M.D.,† Arlene G. Caggilila, Ph.D.,∗ Norman Wolmark, M.D.,‡ and Charles G. Watson, M.D.,§ ∗Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, †School of Medicine, East Carolina University, Greenville, North Carolina 27834, ‡Department of Surgery, University of Pittsburgh, 3459 Fifth Avenue, Pittsburgh, Pennsylvania 15213, and §Falk Clinic, Room 571, 3601 Fifth Avenue, Pittsburgh, Pennsylvania 15213