Sentence: The effects of the Acanthopanax obovatus polysaccharide ( AOPS ) as well as its combination with cyclophosphamide ( CY ) or prednisolone on immune responses were investigated in mice .
Drug combination annotation:
[{'class': 'POS', 'spans': ['Acanthopanax obovatus polysaccharide', 'cyclophosphamide'], 'is_context_needed': True}, {'class': 'POS', 'spans': [0, 2], 'is_context_needed': True}]