| after obtaining written consent | 4 | manner |
| prospectively | 2 | manner |
| from june 2013 to january | 2 | temporal |
| method → be → enrolled | 65 |
| negative | neutral | positive |
| 0.130 | 0.840 | 0.030 |
| Raw frequency | 65 |
| Normalized frequency | 0.372 |
| Modifier score | 0.500 |
| Perplexity | 492.542 |