摘要

1文献类型治疗。2证据水平1b。3文献来源Hartgrink HH,Velde CJH,Putter H,et al.Extended lymph node dissection for gastric cancer:who may benefit?Final results of the randomizedDutch Gastric Cancer Group Trial[J].J Clin Oncol,2004,22(11):2069-2077.4背景胃癌是?