| with different fda-approved adjuvants | 2 | other |
| antigen → be → tested | 10 |
| antigen → be tested in → combination | 3 |
| antigen → be used in → test | 3 |
| negative | neutral | positive |
| 0.127 | 0.795 | 0.078 |
| Raw frequency | 16 |
| Normalized frequency | 0.374 |
| Modifier score | 0.880 |
| Perplexity | 34.199 |