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Major makers to identify combined drug therapies.
| Markers | Occurrence | Combined drug therapy | Other therapy |
| combin* | 171 | 170 | drug & radiotherapy |
| coadministration | 2 | 2 | N/Aa |
| co-administered | 1 | 1 | N/A |
| regimen (without markers above) | 22 | 21 | Single therapy |
aN/A: not applicable.
