| sometimes | 14 | temporal |
| during the procedure | 12 | temporal |
| the earlier | 5 | temporal |
| stent → be → inserted | 156 |
| stent → be placed in → patient | 6 |
| stent → be inserted in → patient | 6 |
| stent → be inserted into → patient | 3 |
| negative | neutral | positive |
| 0.210 | 0.726 | 0.063 |
| Raw frequency | 171 |
| Normalized frequency | 0.835 |
| Modifier score | 0.569 |
| Perplexity | 63.462 |