Figure 4

(A) Kaplan-Meier curves show the analyses of the overall survival (OS) of patients stratified by different cut-off values for Ki-67 levels, as measured using Method A and considering treatment allocation. (B) Kaplan-Meier curves show the analysis of the breast cancer-free interval (BCFI) in patients stratified by different cut-off values for Ki-67 levels measured using Method A and considering treatment allocation.