Figure 4

Kaplan-Meier survival estimates for patients with no response from the retrospective study, the prospective cohort and the two studies combined. Disease-free survival (DFS) curves of evaluated patients in the retrospective study (A), the prospective cohort (B) and the combined results (C). Overall survival (OS) curves of evaluated patients in the retrospective study (D), the prospective cohort (E) and the combined results (F).