Patients receive clinician s choice of either letrozole PO QD on days 1 28, tamoxifen citrate PO BID on days 1 28, paclitaxel IV over 1 hour on days 1, 8, and 15, pegylated liposomal doxorubicin hydrochloride IV over 1 hour on day 1, or topotecan IV over 30 minutes on days 1, 8, and 15
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