Letrozole compared with tamoxifen for elderly patients with endocrine-responsive early breast cancer: the BIG 1-98 trial

- Crivellari, Diana; Sun, Zhuoxin; Gelber, Richard D.; Colleoni, Marco; Lang, Istvan; Del Mastro, Lucia; Gladieff, Laurence; Rabaglio, Manuela; Smith, Ian E.; Chirgwin, Jacquie H.; Goldhirsch, Aron; Coates, Alan S.; Price, Karen N.; Thurlimann, Beat; Mouridsen, Henning; Mauriac, Louis; Forbes, John F.; Paridaens, Robert J.; Castiglione-Gertsch, Monica