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Quality evaluation of studies in the meta-analysis.
| Study | Randomization | Allocation sequence concealment | Selective reporting | Incomplete outcome data | Other bias | ITT analysis |
|---|---|---|---|---|---|---|
| Dixon et al. [13] | Computer generated | Not stated | Not stated | Yes | Not stated | Yes |
| Schauer et al. [14] | Block randomization | Not stated | Not stated | Yes | Not stated | Not stated |
| Mingrone et al. [15] | Computer generated | Not stated | Not stated | Yes | Not stated | Yes |
