| Low risk of bias | Unclear risk of bias | High risk of bias | Details | |
| Random sequence generation | ||||
| Allocation concealment | ||||
| Blinding of participants and personnel | ||||
| Blinding of outcome assessment | ||||
| Selective reporting bias | ||||
| Incomplete outcome data | ||||
| Other bias | ||||
| Withdrawals | ||||
| Other (describe) |
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