Prognostic and predictive value of centrally reviewed Ki-67 labeling index in postmenopausal women with endocrine-responsive breast cancer: results from Breast International Group Trial 1-98 comparing adjuvant tamoxifen with letrozole.

Viale, G; GIOBBIE HURDER, A; Regan, Mm; Coates, As; Mastropasqua, Mg; Dell'Orto, P; Maiorano, E; Macgrogan, G; Braye, Sg; Ohlschlegel, C; Neven, P; Orosz, Z; Olszewski, Wp; Knox, F; Thürlimann, B; Price, Kn; CASTIGLIONE GERTSCH, M; Gelber, Rd; Gusterson, Ba; Goldhirsch, A; Grigolato, Pier Giovanni; BREAST INTERNATIONAL GROUP, Trial