Methods We randomly assigned patients with epidermal growth factor receptor – positive colorectal cancer with unresectable metastases to receive FOLFIRI either alone or in combination with cetuximab .
方法：我们随机分组表皮生长因子受体阳性、转移性、不可切除结直肠癌患者接受FOLFIRI单独化疗或联合西妥昔单抗化疗。
folfiri