| Selection bias/Allocation of intervention | ||
| State here method used to generate allocation and reasons for grading | Grade (circle) | Bias likely |
| Allocation is clearly described. An accepted randomized method is used.
Randomization is done at appropriate time point. Details: |
Adequate (Random) | No |
| Inadequate/ non‐randomized |
Yes | |
| Unclear | Unclear | |
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