Isolation of circulating tumor cells in patients undergoing surgery for esophageal cancer and a specific confirmation method. - Zhao, Yunpeng; Zhao, Shukang; Chen, Yingjie; Dong, Xiaopeng; Peng, Chuanliang; Sun, Qifeng; Shan, Lei; Wang, Zhendan; Zhao, Xiaogang (Oncology Letters, 2019)