Sentence: Our data indicate that the addition of Aspirin or of Atenolol to Metformin might be beneficial for BC control , and that this activity is likely due to effects on both BC and microenvironment cells .
Drug combination annotation:
[{'class': 'POS', 'spans': ['Aspirin', 'Metformin'], 'is_context_needed': False}, {'class': 'POS', 'spans': [1, 2], 'is_context_needed': False}]