Similar to what was reported for the published PCR-based PAM50 classifier [4], patients assigned a Luminal A subtype had superior outcome (assessed by Kaplan-Meier survival curves of the BC TAM cohort) compared to the other two subtypes (Fig. 7) with similar calculated hazard ratios (Luminal B 3.87 and Her2 Enriched 2.86 versus Luminal B 3.67 and Her2 Enriched 2.80 for published versus Prosigna respectively). Here, ERBB2 is linked to breast cancer.