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目的检验低密度区的大小分布频率可能是量化肺气肿的一个参数的假说。材料与方法本研究获得伦理委员会批准,并取得病人知情同意。80例拟行肺癌切除术的病
Aim To test the hypothesis that the frequency of size distribution in low-density regions may be a parameter of quantitative emphysema. Materials and Methods The study was approved by Ethics Committee and informed consent was obtained. 80 cases planned lung cancer resection disease