| by a patient | 24 | other |
| depending on the research question | 16 | other |
| because of the special effect | 14 | cause |
| method → be → chosen | 494 |
| method → be chosen for → use | 5 |
| method → be selected for → example | 4 |
| negative | neutral | positive |
| 0.089 | 0.718 | 0.193 |
| Raw frequency | 503 |
| Normalized frequency | 0.619 |
| Modifier score | 0.824 |
| Perplexity | 185.343 |