Sentence: All the patients were conditioned with busulfan ( BU ) 12 mg.kg-1 and cyclophosphamide ( CY ) 3.6 g.m-2 , of whom 4 were conditioned with additioned antithymocyte globulin(ATG ) .
Drug combination annotation:
[{'class': 'POS', 'spans': ['busulfan', 'cyclophosphamide', 'antithymocyte globulin(ATG'], 'is_context_needed': True}]