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1 文献类型治疗2 证据水平1b3 文献来源Laack E, Dickgreber N, Miller T, et al.Randomized phase Ⅲ study of Gemcitabine and Vinorelbine versus Gemcitabine, Vinorelbine, and Cisplatin in the treatment of advanced non-small-cell lung-cancer:from the German and Swiss lung canc