| from low birth weight | 9 | cause |
| further | 2 | manner |
| according to standard protocol | 2 | other |
| placenta → be → examined | 17 |
| placenta → be → investigated | 3 |
| placenta → be examined after → birth | 3 |
| negative | neutral | positive |
| 0.171 | 0.724 | 0.104 |
| Raw frequency | 23 |
| Normalized frequency | 0.494 |
| Modifier score | 1.000 |
| Perplexity | 54.325 |