Fig. 3

HLA class I HC immunohistochemistry in GeparTrio and HLA-A mRNA analysis in the MDACC cohort: in GeparTrio, HLA class I immunohistochemistry was associated with shorter disease-free survival (a, b) in HR+/HER2− tumors. For the HR+/HER2− microarray data, we chose a cut-off for HLA-A without prior knowledge of patients’ outcome to assign the same fraction of patients to each group as in the immunohistochemistry dataset. The effect on survival could be confirmed (c, d)