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Summary of results of correct handling of measures.
| Measures | n | Study group | Control group | P value |
| 12-lead ECGa | 39 | 38 | 39 | >.99 |
| Acetylsalicylic acid | 38 | 31 | 33 | .73 |
| Heparin | 38 | 34 | 33 | >.99 |
| Morphine | 29 | 29 | 27 | .50 |
| Oxygen | 34 | 29 | 18 | .007 |
aECG: electrocardiogram.
