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Scoring according to Jadad scale for reporting randomized controlled trials [19]
| Author | Yoshimaki T. et al. (2014) [14] | Paknejad et al. (2013) [17] | Gao et al. (2018) [18] |
|---|---|---|---|
| Randomization present | 1 | 1 | 1 |
| Appropriate randomization used | 1 | 1 | 1 |
| Blinding present | 0 | 1 | 1 |
| Appropriate blinding used | 0 | 0 – not described | 0 – not described |
| Appropriate long-term follow-up for all patients | 1 | 1 | 1 |
| Total | 3 | 4 | 4 |
