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1文献类型治疗2证据水平1b3文献来源Keller S M,Adak S,Wagner H,et al.A randomizedtrial of postoperative adjuvant therapy in patients withcompletely resected stage Ⅱ or Ⅲ A non-small-celllung cancer [J]. N Engl J Med,2000,343:1217-1222