| ExEF | ejection fraction during exercise |
|---|---|
| MER | mean ejection rate; medical emergency room; methanol extraction residue; murmur/energy ratio |
| MREI | mean rate ejection index |
| MSER | mean systolic ejection rate |
| PEP | peptidase; phospho(enol)pyruvate; peer evaluation program; phosphoenolpyruvate; pigmentation, edema,... |