Sentence: Low-risk patients received three cycles of modified CODOX-M ( cyclophosphamide , doxorubicin , adriamycin , vincristine with intrathecal methotrexate and cytarabine followed by high-dose systemic methotrexate , regimen A ) .
Drug combination annotation:
[{'class': 'POS', 'spans': ['cyclophosphamide', 'doxorubicin', 'vincristine', 'methotrexate', 'cytarabine', 'adriamycin'], 'is_context_needed': True}]