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The Newcastle–Ottawa scale scores
| Author, year | Study design | NOS score | ||
|---|---|---|---|---|
| Selection | Comparability | Outcome | ||
| Fukuda et al. [21] | Retrospective, single-center observational study | 2 | 1 | 1 |
The NOS score is an aggregate score derived from three distinct domains: Selection (with a maximum of 4 points), Comparability (with a maximum of 2 points), and Outcome (with a maximum of 3 points)
NOS Newcastle–Ottawa Scale
