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| Methods | RCT ‐ 1981‐85 | |
| Participants | 52 patients | |
| Interventions | radical radiotherapy vs radical radiotherapy + chemotherapy vinblastine 6 | |
| Outcomes | survival | |
| Notes | chemotherapy given until tumour progression or toxicity radiotherapy 55 Gy in 28 fractions | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment (selection bias) | Low risk | A ‐ Adequate |
