| because of “atony” | 2 | cause |
| usually | 2 | degree |
| placenta → be → retained | 18 |
| placenta → be left in → situ | 13 |
| placenta → be → kept | 5 |
| negative | neutral | positive |
| 0.252 | 0.653 | 0.094 |
| Raw frequency | 36 |
| Normalized frequency | 0.602 |
| Modifier score | 0.567 |
| Perplexity | 72.740 |