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| Score | Description | Include/ Exclude |
|---|---|---|
| S1 | No clear methods leading to results and conclusions | Exclude |
| S2 | Methods lack detail, although results may suggest a trend (e.g. article covers something unique) | Include |
| S3 | Methods appropriate for our research question (population, data generated, data presented) | Include |
| S4 | Methods are very clear and very likely to yield important data | Include and consider as key |
| S5 | Methods have produced data that are unequivocal | Include and consider as key |
