Sentence: Newer treatment regimens , including etoposide , prednisone , vincristine , cyclophosphamide , doxorubicin , rituximab ( EPOCH-R ) , show promise for these patients .
Drug combination annotation:
[{'class': 'POS', 'spans': ['etoposide', 'prednisone', 'vincristine', 'cyclophosphamide', 'doxorubicin', 'rituximab'], 'is_context_needed': False}]