Reproducibility of BluePrint between two independent isolations, comparison of indices between isolation 1 and isolation 2 using different sections of the tumor (N = 46). A. BluePrint Luminal-type indices, B. BluePrint HER2-type indices, C. BluePrint Basal-type indices, D. BluePrint indices comparison for the final assigned subtype (Luminal-, HER2- and or Basal-type). BluePrint subtype concordance was 100%.