| by embryologists | 3 | other |
| as per the istanbul consensus | 3 | other |
| embryo → be → graded | 13 |
| embryo → be → grade | 5 |
| embryo → be assigned → grade | 3 |
| negative | neutral | positive |
| 0.167 | 0.732 | 0.101 |
| Raw frequency | 21 |
| Normalized frequency | 0.388 |
| Modifier score | 0.500 |
| Perplexity | 111.306 |