| to 40 ng/ml | 3 | other |
| substantially more than was | 2 | other |
| during pregnancy | 2 | temporal |
| vitamin d → be → increased | 10 |
| vitamin d → be → raised | 3 |
| vitamin d → raise → their serum levels | 3 |
| negative | neutral | positive |
| 0.237 | 0.508 | 0.256 |
| Raw frequency | 16 |
| Normalized frequency | 0.256 |
| Modifier score | 0.500 |
| Perplexity | 53.186 |