Figure 4

Kaplan–Meier curves showing estimated PFS and OS for patients with CTC negativity (CTC ≤ 19) and CTC positivity (CTC > 19) before initial chemotherapy (a, b) and before final chemotherapy (c, d).
Kaplan–Meier curves showing estimated PFS and OS for patients with CTC negativity (CTC ≤ 19) and CTC positivity (CTC > 19) before initial chemotherapy (a, b) and before final chemotherapy (c, d).