Sentence: The diagnosis was stage IIIA HHV-8-LBL , and he was treated with 6 cycles of R-EPOCH ( rituximab , etoposide , vincristine , doxorubicin , cyclophosphamide , and prednisone ) infusion chemotherapy .
Drug combination annotation:
[{'class': 'POS', 'spans': ['rituximab', 'etoposide', 'vincristine', 'doxorubicin', 'cyclophosphamide', 'prednisone'], 'is_context_needed': True}]