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Left ventricular pressure and segment lengths were recorded at five time points in each rat.
| Time point | State | Measurement time |
|---|---|---|
| 1 | Control | Prior to Ligation |
| 2 | Myocardial Infarction | 30 min Following Ligation |
| 3 | Myocardial Infarction + Dobutamine (or Nitroglycerin) | Immediately Following Drug Administration |
| 4 | Myocardial Infarction 2 | 5 min Following Drug Administration |
| 5 | Myocardial Infarction + Nitroglycerin (or Dobutamine) | Immediately Following Drug Administration |
