| HER2 | Human Epidermal Growth Factor Receptor 2 |
| NAT | Neoadjuvant Treatment |
| pCR | Pathological Complete Response |
| OS | Overall Survival |
| AUC | Area Under the Curve |
| NCDB | National Cancer Database |
| HR | Hormone Receptor |
| ypT | Pathologic Tumor Stage (post-treatment) |
| ypN | Pathologic Node Stage (post-treatment) |
| cT | Clinical Tumor Stage (pre-treatment) |
| CI | Confidence Interval |
| KM | Kaplan–Meier |
| ROC | Receiver Operating Characteristic |
| IDC | Invasive Ductal Carcinoma |
| ILC | Invasive Lobular Carcinoma |
| IPC | Invasive Papillary Carcinoma |