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Number and percentages of c-erbB2 (Her2)-switches between primary tumor and circulating tumor cells (CTCs).
| Her2 Status Tumor/CTCs | Adjuvant | Metastatic | ||
|---|---|---|---|---|
|
|
|
|||
| Number | % | Number | % | |
| +/+ | 3/14 | 22% | 1/11 | 9% |
| +/− | 1/14 | 7% | 6/11 | 55% |
| −/+ | 6/14 | 43% | 1/11 | 9% |
| −/− | 4/14 | 28% | 3/11 | 27% |
