GENE-ENVIRONMENT INTERACTIONS IN 7610 WOMEN WITH BREAST CANCER: PROSPECTIVE EVIDENCE FROM THE MILLION WOMEN STUDY - Travis, R; Reeves, G; Green, J; Bull, D; Tipper, S; Baker, K; Beral, V; Peto, R; Bell, J; Zelenika, D; Lathrop, M; Collaborators, MWS (2010)