Sentence: After surgical insertion of a catheter in the hepatic artery , patients were treated with oxaliplatin 100 mg/m(2 ) HAI combined with FU + leucovorin IV according to the LV5FU2 protocol .
Drug combination annotation:
[{'class': 'POS', 'spans': ['oxaliplatin', 'leucovorin'], 'is_context_needed': True}]