Sentence: The primary melanoma was surgically resected , and combination hepatic arterial infusion ( HAI ) therapy using dacarbazine , nimustine , vincristine ( DAV ) , and cisplatin was applied to the metastatic focus .
Drug combination annotation:
[{'class': 'POS', 'spans': ['dacarbazine', 'nimustine', 'vincristine', 'cisplatin'], 'is_context_needed': True}]