Fig. 3. Disease-free survival in Luminal B early breast cancer patients only treated with adjuvant endocrine therapy without adjuvant chemotherapy according to a clinico-genomic model combining CINSARC, pathological tumor size and lymph node status.

a Kaplan–Meier disease-free survival (DFS) in Luminal B breast cancer patients according to the two classes defined by the model (high-risk versus low-risk) in the learning set. b Similar to a, but in the validation set.