| retrospectively | 18 | manner |
| periodically | 7 | temporal |
| previously | 5 | temporal |
| method → be → reviewed | 226 |
| method → be reviewed in → detail | 7 |
| method → require → review | 3 |
| negative | neutral | positive |
| 0.064 | 0.827 | 0.108 |
| Raw frequency | 236 |
| Normalized frequency | 0.528 |
| Modifier score | 0.925 |
| Perplexity | 183.211 |