| from the vessel | 6 | location |
| from 1 hpir | 3 | temporal |
| catheter → be → extracted | 11 |
| catheter → be → collected | 3 |
| catheter → be → retrieved | 3 |
| negative | neutral | positive |
| 0.135 | 0.823 | 0.041 |
| Raw frequency | 17 |
| Normalized frequency | 0.288 |
| Modifier score | 0.500 |
| Perplexity | 191.683 |