Analyses adjusting for selective crossover show improved overall survival with adjuvant letrozole compared with tamoxifen in the BIG 1-98 Study

- Colleoni, Marco, Giobbie-Hurder, Anita, Chirgwin, Jacquie, Pienkowski, Tadeusz, Wardley, Andrew, Price, Karen N., Gelber, Richard D., Coates, Alan S., Goldhirsch, Aron, Regan, Meredith M., Thürlimann, Beat, Mouridsen, Henning, Mauriac, Louis, Forbes, John F., Paridaens, Robert, Láng, István, Smith, Ian

Assessment of letrozole and tamoxifen alone and in sequence for postmenopausal women with steroid hormone receptor-positive breast cancer: the BIG 1-98 randomised clinical trial at 8.1 years median follow-up

- Regan, Meredith M., Neven, Patrick, Rabaglio, Manuela, Price, Karen N., Gelber, Richard D., Coates, Alan S., Thürlimann, Beat, Giobbie-Hurder, Anita, Goldhirsch, Aron, Ejlertsen, Bent, Mauriac, Louis, Forbes, John F., Smith, Ian, Láng, István, Wardley, Andrew