| 3D-CRT | Three-dimensional conformal radiotherapy |
| AC | Anthracycline, cyclophosphamide |
| AI | Aromatase inhibitor |
| BCS | Breast-conserving surgery |
| CI | Confidence intervals |
| IMRT | Intensity-modulated radiation therapy |
| INC | Instituto Nacional de Cancerología |
| IQR | Interquartile range |
| NACT | Neoadjuvant chemotherapy |
| OS | Overall survival |
| pCR | Pathologic complete response |
| RT | Adjuvant radiotherapy |
| SD | Standard deviation |
| T | Taxanes |
| TC | Taxane and cyclophosphamide |
| TH | Taxanes and trastuzumab |
| TR | Time to recurrence |
| VMAT | Volumetric intensity-modulated arc therapy |