Table 2.
Sources and dilutions of primary antibodies used in this study
| Antibody | Clone | Manufacturer | Dilution |
| ER | 1D5 | Dako | 1:200 |
| PR | PgR 636 | Dako | 1:50 |
| HER2 | A0485 (rabbit polyclonal) | Dako | 1:400 |
| CK5/6 | D5/16B4 | Dako | 1:50 |
| EGFR | 2-18C9 | Dako | pre-diluted (pharmDX kit) |
CK5/6, cytokeratin 5/6; EGFR, epidermal growth factor receptor; ER, oestrogen receptor; PR, progesterone receptor; HER2, human epidermal growth factor receptor 2.