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