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<正> 1 文献类型 治疗2 证据水平 2b3 文献来源 Fairooz K,Herbert L,Lurwitz F,et al.Phase Ⅱ, randomized trial comparing Bevacizumab pluse Fluorouracil (FU)/Leucovorin (LV) with FU/LV alone in patients with metastatic colorectal cancer [J]. J Clin Oncol, 2003,21(1):60-