Sentence: Phase I study of decitabine with doxorubicin and cyclophosphamide in children with neuroblastoma and other solid tumors : a Children 's Oncology Group study .
Drug combination annotation:
[{'class': 'NEG', 'spans': ['decitabine', 'doxorubicin'], 'is_context_needed': True}, {'class': 'NEG', 'spans': [0, 2], 'is_context_needed': True}]