| to drug | 4 | cause |
| about microns in size | 4 | other |
| sufficiently | 3 | degree |
| membrane → be → porous | 29 |
| membrane → have → pore | 26 |
| membrane → become → porous | 3 |
| membrane → be → pore | 3 |
| membrane → comprise → porous | 3 |
| negative | neutral | positive |
| 0.072 | 0.752 | 0.176 |
| Raw frequency | 64 |
| Normalized frequency | 0.579 |
| Modifier score | 0.500 |
| Perplexity | 199.050 |