Sentence: After a median follow-up of 9.5 years , 10-year OS rates in the bolus/infusional fluorouracil plus leucovorin ( LV5FU2 ) and LV5FU2 plus oxaliplatin ( FOLFOX4 ) arms were 67.1 % versus 71.7 % ( hazard ratio [ HR ] , 0.85 ; P = .043 ) in the whole population , 79.5 % versus 78.4 % for stage II ( HR , 1.00 ; P = .980 ) , and 59.0 % versus 67.1 % for stage III ( HR , 0.80 ; P = .016 ) disease .
Drug combination annotation:
[{'class': 'POS', 'spans': ['fluorouracil', 'leucovorin'], 'is_context_needed': True}, {'class': 'POS', 'spans': [2, 3], 'is_context_needed': True}]