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Initial tumour localisation of patients tested positive for internal mammary lymph node metastasis.
| Initial tumour localisation within the breast | Patients (n) sampled positively |
|---|---|
| Upper outer quadrant | 3 |
| Upper inner quadrant | 1 |
| Lower outer quadrant | 1 |
| Lower inner quadrant | 0 |
| Center of the breast | 1 |
