| FEP | Free Energy Perturbations |
|---|---|
| FEP | Free erythrocyte porphyrins |
| FEP | Free erythrocyte protoporphirin |
| FEPi | Fractional excretion of phosphate |
| fEPSP | Field excitatory postsynaptic potential |
| Fer | Ferritin |
| FER | Food Efficiency Ratio |
| FES | Family Environment Scale |
| FES | Fat Embolism Syndrome |
| FES | Functional Electric Stimulation |