ERBB2 and neoplasm: The evaluation of R2 achieved an AUC of 0.773 (95%CI, 0.654-0.893), 0.849 (95%CI, 0.755-0.943), 0.687 (95%CI, 0.397-0.978), 0.819(95%CI, 0.732-0.906) and 0.762 (95%CI, 0.630-0.893) in the HR+/HER2-, HER2+, triple-negative and tumor sized ≤ 3cm and tumor sized>3 cm subgroups respectively.