Treatment adherence and its impact on disease-free survival in the breast international group 1-98 trial of tamoxifen and letrozole, alone and in sequence

- Chirgwin, Jacquie H.; Giobbie-Hurder, Anita; Forbes, John F.; Neven, Patrick; Láng, István; Colleoni, Marco; Thürlimann, Beat; Coates, Alan S.; Price, Karen N.; Ejlertsen, Bent; Debled, Marc; Gelber, Richard D.; Goldhirsch, Aron; Smith, Ian; Rabaglio, Manuela