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Risk of bias of randomised controlled trials.
| Author | Pub. Year | Total Number of Participants | Randomisation | Deviations from Intended Interventions | Missing Outcome Data | Measurement of Outcomes | Reported Result | Overall Risk of Bias |
|---|---|---|---|---|---|---|---|---|
| Koga et al. [14] | 1988 | 60 | Some concerns | High | Low | Low | Low | High |
| Kaibara et al. [15] | 1989 | 82 | Some concerns | Low | Low | Low | Low | Some concerns |
