Sentence: To evaluate the toxicity and activity of infusional fluorouracil ( FU ) , folinic acid ( FA ) , and oxaliplatin , administered every 2 weeks in patients with metastatic gastric cancer .
Drug combination annotation:
[{'class': 'POS', 'spans': ['fluorouracil', 'folinic acid', 'oxaliplatin'], 'is_context_needed': True}]