| in place | 21 | location |
| either way | 5 | manner |
| for pre-operative prophylaxis | 4 | purpose |
| hospital → have → protocol | 49 |
| hospital → follow → protocol | 12 |
| hospital → have → medical protocols | 4 |
| negative | neutral | positive |
| 0.181 | 0.640 | 0.179 |
| Raw frequency | 65 |
| Normalized frequency | 0.557 |
| Modifier score | 0.823 |
| Perplexity | 476.767 |