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Operating characteristics of the stopping rule for feasibility
| Underlying proportion without detectable DNA double-strand breaks | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 |
| % of the time study stops | 19.3% | 44% | 74.8% | 92.4% | 99.4% |
| Expected sample size | 16.3 | 14.1 | 11.1 | 8.7 | 6.9 |
