Correlation of displacement of mediastinal metastatic lymph nodes with adjacent organs in non‐small cell lung cancer on four‐dimensional computed tomography oleh Suzhen Wang, Huai‐Xin Xing, Jianbin Li, Ying‐Jie Zhang, Ting‐Yong Fan, Shuang‐Hu Yuan, Xu‐Dong Hu, Min Xu