Sentence: In all , 171 patients with histologically verified non-small cell lung carcinoma were treated with ifosfamide 2.0 g/m2 on days 1 - 5 in combination with ( 91 patients ) etoposide 120 mg/m2 on day 1 .
Drug combination annotation:
[{'class': 'POS', 'spans': ['ifosfamide', 'etoposide'], 'is_context_needed': True}]