Table 4. .
Validation measures
| Validation procedures | |||
|---|---|---|---|
| Yes | No | Unclear | |
| Cross-validation | 94.1% | 4.2% | 1.7% |
| Lockbox | 20.3% | 79.7% | 0.0% |
| If lockbox, compared once (n = 24) | 70.8% | 12.5% | 16.7% |
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