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Risk of bias assessment of randomized controlled trials
| Risk of bias | Randomization | Deviations from intended interventions | Missing outcome data | Measurement of the outcomes | Selection of the reported results | Overall risk of bias |
|---|---|---|---|---|---|---|
| DOCTORS [18] | Low | Some concerns | Low | Some concerns | Low | Some concerns |
| EROSION III [23] | Low | Some concerns | Low | Some concerns | Low | Some concerns |
| OCTACS [24] | Low | High | Some concerns | Some concerns | Some concerns | High |
