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Risk of Bias ‐ Distribution of the 45 Studies Analysing STAR Data
| Relevant results reported are from other included studies | 7 |
| STAR follow up data (LBS) | 11 |
| Provide no results that can be used in the data synthesis | 17 |
| Used in data synthesis | 4 |
| Provide results for only one grade (K or 1) that can be used | 3 |
| Too high risk of bias | 3 |
| Total | 45 |
