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Crivellari, Diana; Sun, Zhuoxin; Coates, Alan S; Price, Karen N; Thürlimann, Beat; Mouridsen, Henning; Mauriac, Louis; Forbes, John F; Paridaens, Robert J; Castiglione-Gertsch, Monica; Gelber, Richard D; Colleoni, Marco; Láng, István; Del Mastro, Lucia; Gladieff, Laurence; Rabaglio, Manuela; Smith, Ian E; Chirgwin, Jacquie H; Goldhirsch, Aron (2008). Letrozole compared with tamoxifen for elderly patients with endocrine-responsive early breast cancer: the BIG 1-98 trial. Journal of clinical oncology, 26(12), pp. 1972-9. Alexandria, Va.: American Society of Clinical Oncology 10.1200/JCO.2007.14.0459
