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Quality evaluation of studies included into the meta–analysis.
| First author | Published years | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8 | Total score |
|---|---|---|---|---|---|---|---|---|---|---|
| Qian Li (20) | 2021 | ★ | ★ | ★ | ★★ | ★ | ★ | 7 | ||
| Yibiao Chen (19) | 2021 | ★ | ★ | ★ | ★★ | ★ | ★ | 7 | ||
| Ying Xiong (21) | 2021 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
| Yuhua Feng (22) | 2020 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
| Xiaojiao Zeng (23) | 2020 | ★ | ★ | ★ | ★★ | ★ | ★ | 7 | ||
| Cheng Lin (24) | 2019 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
| Yuan Chen (25) | 2019 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
| Ronald Wihal Oei (26) | 2018 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
| Wenjie Jiang (27) | 2017 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 |
