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Characteristics of clinical registries
| N studies | |
|---|---|
| Time-period coverage | |
| Reported | 8 |
| Not reported | 5 |
| Population coverage | |
| Reported | 13 |
| Not reported | 0 |
| Consent stated | |
| Yes | 9 |
| No | 4 |
| Funding | |
| Reported | 10 |
| Not reported | 3 |
| Data validity | |
| Reported | 10 |
| Not reported | 3 |
