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Background: Basal-like Breast Cancer (BBC) is a highly aggressive form of breast cancer with high levels of genetic complexity.Prognostic markers could help to predict outcomes and to guide treatment decisions for patients with BBC.Although many efforts have been made to identify prognostic markers for BBC,few genes were identified and validated across multiple cohorts.To depict a robust landscape of prognostic genes,we present a systematic analysis of gene expression profiles across five BBC datasets that are public available.