| Ab | antibody |
| CI | Confidence interval |
| ER | Estrogen Receptor |
| Her2 | Human Epidermal Growth Factor Receptor-2 |
| HR | hormone receptor |
| HdR | hazard ratio |
| IF | immunofluorescence |
| IHC | Immunohistochemistry |
| ISH | in situ hybridization |
| PR | Progesterone Receptor |
| ROI | Region of interest |
| SBR | Scarff–Bloom–Richardson |
| TNBC | Triple-Negative Breast Cancer |
| TTR | Time To Relapse |
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