Fig. 2

Kaplan–Meier estimates of relapse-free survival in dataset merged from GSE7390, GSE6532 and GSE4922. a Relapse-free survival curves for reclassified HG3 and confirmed HG1 breast cancer patients. b Relapse-free survival curves for reclassified HG1 and confirmed HG3 breast cancer patients. c Relapse-free survival curves for reclassified HG3 and reclassified HG1 breast cancer patients