| very | 16 | degree |
| in smaller subpopulations | 11 | location |
| for topical use in local delivery | 10 | purpose |
| drug → be → important | 98 |
| drug → be → essential | 93 |
| drug → be → critical | 41 |
| drug → be → crucial | 29 |
| drug → be → vital | 29 |
| negative | neutral | positive |
| 0.221 | 0.533 | 0.246 |
| Raw frequency | 290 |
| Normalized frequency | 0.609 |
| Modifier score | 0.693 |
| Perplexity | 278.422 |