Sentence: Based on encouraging results of previous combination regimens , we used a combination of VM26 , ifosfamide , methyl GAG , mitoxantrone ( or adriamycin ) , high-dose ( HD ) methotrexate and HD Ara C to treat 18 patients with relapsed or refractory NHL .
Drug combination annotation:
[{'class': 'POS', 'spans': ['VM26', 'ifosfamide', 'methyl GAG ,', 'mitoxantrone', 'methotrexate', 'Ara C'], 'is_context_needed': True}, {'class': 'POS', 'spans': [0, 1, 2, 4, 5, 6], 'is_context_needed': True}]