Fig. 3.   Association between the Blue_panBC signature score and patient survival in ER-negative breast cancer across 27 non-TMO-based cohorts.  Each Kaplan-Meier plot represents the analysis of a single, independent cohort.  Since direct comparison of signature scores across these non-TMO-based gene expression profiles is currently not feasible, samples within each cohort were stratified using tertile splits of the signature score (i.e. high: > 2/3 percentile; low ≤ 1/3 percentile; medium: ≤ 2/3 percentile and >1/3 percentile).