Contrast-enhanced CT radiomics combined with multiple machine learning algorithms for preoperative identification of lymph node metastasis in pancreatic ductal adenocarcinoma oleh Yue Huang, Yue Huang, Yue Huang, Han Zhang, Han Zhang, Han Zhang, Lingfeng Chen, Lingfeng Chen, Lingfeng Chen, Qingzhu Ding, Qingzhu Ding, Qingzhu Ding, Dehua Chen, Guozhong Liu, Guozhong Liu, Xiang Zhang, Xiang Zhang, Xiang Zhang, Qiang Huang, Qiang Huang, Qiang Huang, Denghan Zhang, Denghan Zhang, Denghan Zhang, Shangeng Weng, Shangeng Weng, Shangeng Weng, Shangeng Weng, Shangeng Weng