Sentence: Therefore , the pain scores were significantly higher in the neostigmine group than the other two groups ( p = 0.02 ) , but no significant difference was found between the two groups that received dexmedetomidine and a combination of dexmedetomidine + neostigmine .
Drug combination annotation:
[{'class': 'POS', 'spans': ['dexmedetomidine', 'neostigmine'], 'is_context_needed': True}]