| in laboratory | 2 | location |
| before introduction into your body | 2 | temporal |
| stem cell → be → expanded | 12 |
| stem cell → be expanded in → vitro | 4 |
| stem cell → be expanded in → culture | 3 |
| stem cell → be expanded in → the lab | 3 |
| negative | neutral | positive |
| 0.037 | 0.748 | 0.215 |
| Raw frequency | 22 |
| Normalized frequency | 0.402 |
| Modifier score | 0.500 |
| Perplexity | 316.192 |