| from the patient | 19 | other |
| from the crimper | 11 | other |
| from the medical device | 11 | other |
| balloon → be → removed | 509 |
| balloon → be → withdrawn | 54 |
| balloon → be → retracted | 13 |
| negative | neutral | positive |
| 0.135 | 0.723 | 0.142 |
| Raw frequency | 576 |
| Normalized frequency | 0.838 |
| Modifier score | 0.989 |
| Perplexity | 281.289 |