fig4
![Circulating tumor cells and drug history in primary breast cancer patients](https://image.oaes.cc/303427ed-45fc-45b4-9f9b-27a1135b1e1f/3338.fig.4.jpg)
Figure 4. Kaplan-Meier estimates of probabilities of disease-free survival according to CTC status A, CTC negative B, CTC_EP positive C, CTC_EMT positive D, CTC_any. CTC: circulating tumor cell; CTC_EP: circulating tumor cell with epithelial phenotype; CTC_EMT: circulating tumor cell with epithelial-mesenchymal transition phenotype