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Results of previous CyberKnife studies.
| Study | Number of patients | Median follow-up (months) | 2-year Local control | 2-year Overall survival |
|---|---|---|---|---|
| Chen et al. (12) | 40 | 44.0 | 91.0% (3-year) | 45.0% (3-year) |
| Collins et al. (13) | 20 | 25.0 | 100% | 87.0% |
| van der Voort van Zyp et al. (14) | 60 Gy-59 | 15.0 | 60 Gy-96.0% | 62.0%-all patients |
| 45 Gy-11 | 45Gy-78.0% | |||
| 70 Total | ||||
| Brown et al. (15) | 31 | 27.5 | 85.8% (4.5-year) | 83.5% (4.5-year) |
| Vahdat et al. (16) | 20 | 43.0 | 95.0% | 90.0% |
| Present study | 74 | LC-14.4 | 87.0% | 68.0% |
| OS-18.8 |
