In addition, we analyzed the genetic alterations of 21 m6A regulators and found worse prognosis and higher risk of recurrence in patients with alterations in these genes; moreover, the samples with such alterations were more likely to be distributed in luminal B, HER2+, and TNBC (basal-like) subtypes of breast cancer(Supplementary Figures 1B-D). Here, ERBB2 is linked to breast cancer.