Patients were randomly assigned ( @:@ ) to receive either six cycles ( three concomitant to radiotherapy ) of oxaliplatin @ mg/m ( @ ) , leucovorin @ mg/m ( @ ) , bolus fluorouracil @ mg/m ( @ ) , and infusional fluorouracil @ mg/m ( @ ) ( FOLFOX ) over @ h , or four cycles ( two concomitant to radiotherapy ) of fluorouracil @ mg/m ( @ ) per day for @ days and cisplatin @ mg/m ( @ ) on day @ .