Correction to: Breast Cancer Research (2020) 22:91 https://doi.org/10.1186/s13058-020-01328-0

Following publication of the original article [1], the authors identified some errors in Fig. 4. The correct figure is given below.

Fig. 4
figure 4

Prognostic associations in this cohort of sequenced metastatic breast cancer patients. a Overall survival by subtype for all recruited patients (n = 323). b Overall survival of patients based on the mutational burden of 4 mutations (75th percentile) or more (n = 234). c Overall survival of ER + HER2 − patients based on the median mutation number of 4 or more (n = 163 patients). d Table of HR for all patients and all subtypes by mutation number per sample. Patients were excluded if there was incomplete survival information. e Spread of TILs across distant metastatic site (n = 123)

The original article [1] has been corrected.