| often | 5 | temporal |
| by placing electrodes | 5 | manner |
| prior to | 4 | temporal |
| ecg → be → performed | 47 |
| ecg → be → administered | 6 |
| ecg → be performed in → patient | 5 |
| ecg → be performed on → patient | 3 |
| ecg → be → conducted | 3 |
| negative | neutral | positive |
| 0.161 | 0.775 | 0.064 |
| Raw frequency | 64 |
| Normalized frequency | 0.909 |
| Modifier score | 0.343 |
| Perplexity | 63.603 |