Sentence: Paclitaxel ( Taxol ; Bristol-Myers Squibb Company , Princeton , NJ ) has been demonstrated to be highly effective in treating patients with advanced breast cancer , including those with anthracycline-resistant breast cancer , a fact that has led to efforts to combine paclitaxel and anthracyclines .
Drug combination annotation:
[{'class': 'COMB', 'spans': ['paclitaxel', 'anthracyclines'], 'is_context_needed': True}]