The evaluation of R1 achieved an AUC of 0.707 (95%CI, 0.578-0.837), 0.810 (95%CI, 0.704-0.917), 0.646 (95%CI, 0.351-0.941), 0.780 (95%CI, 0.681-0.878) and 0.708 (95%CI, 0.572-0.844) in the HR+/HER2-, HER2+, triple-negative, tumor sized ≤ 3cm and tumor sized>3 cm subgroups respectively. Here, ERBB2 is linked to neoplasm.