Systemic therapy for breast cancer : the action is now in the field of hormonal therapy

DOUBLE BLIND, RANDOMIZED TRIAL COMPARING THE EFFICACY AND TOLERABILITY OF FULVESTRANT VERSUS ANASTRAZOLE IN POSTMENOPAUSAL WOMEN WITH ADVANCED BREAST CANCER PROGRESSING ON PRIOR ENDOCRINE THERAPY: RESULTS OF A NORTH AMERICAN TRIAL. J. CLIN ONCOL, 2002; 20:3386-95