| significantly | 12 | degree |
| in the dark period | 7 | temporal |
| in healthy pregnancy women | 6 | location |
| plasma → be → higher | 17 |
| plasma → be → higher than that | 4 |
| plasma → be → greater | 4 |
| negative | neutral | positive |
| 0.255 | 0.653 | 0.092 |
| Raw frequency | 25 |
| Normalized frequency | 0.538 |
| Modifier score | 0.800 |
| Perplexity | 466.062 |