| highly | 12 | degree |
| very | 11 | degree |
| in healing degenerative joint conditions | 11 | other |
| stem cell → be → effective | 54 |
| stem cell → prove → useful | 7 |
| stem cell → be shown to be → effective | 3 |
| stem cell → prove to be → useful | 3 |
| stem cell → be proven → effective | 3 |
| stem cell → prove → effective | 3 |
| stem cell → proven → effective | 3 |
| negative | neutral | positive |
| 0.065 | 0.285 | 0.650 |
| Raw frequency | 76 |
| Normalized frequency | 0.652 |
| Modifier score | 0.650 |
| Perplexity | 131.065 |