Sentence: These results were similar to those of previously reported salvage therapies for relapsed AML including intensive chemotherapy consisting of intermediate-dose Ara-C and sequential mitoxantrone with or without etoposide ( MC/MEC ) , which we previously adopted .
Drug combination annotation:
[{'class': 'COMB', 'spans': ['Ara-C', 'mitoxantrone'], 'is_context_needed': True}, {'class': 'COMB', 'spans': [0, 1, 2], 'is_context_needed': True}]