Figure 6From: Gene expression profiling spares early breast cancer patients from adjuvant therapy: derived and validated in two population-based cohortsKaplan–Meier survival curves of the risk clusters found in (a) the Stockholm cohort, (b) the Uppsala treated cohort, (c) the Uppsala untreated cohort and (d) the van't Veer cohort. L, low-risk group; M, medium-risk group; H, high-risk group. The P value in each plot, computed in a Cox regression, is for simultaneous comparison of all three curves for the whole follow-up period.Back to article page