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| Subtype | Characteristics |
|---|---|
| Luminal-A-like | HR positive HER2 negative G1, G2 |
| Luminal-B-like (HER2-independent) | HR positive HER2 negative + G3 HER2 positive + all grades |
| HER2 positive | HR negative HER2 positive |
| triple negative tumors | HR negative HER2 negative |
