Table 2: Quality score of preclinical studies.
| Quality score criterion | % studies meeting the criterion |
| Publication in a peer-reviewed journal | 100.00 |
| Temperature control | 71.05 |
| Avoided neuroprotective anesthetics | 21.05 |
| Compliance with animal welfare | 85.53 |
| Random assignment | 53.95 |
| Blinded assessment of outcomes | 55.26 |
| Allocation concealment | 5.26 |
| Conflicts of interest statement | 32.89 |
| Animals with comorbidities | 5.26 |
| Sample size calculation | 1.32 |