| ENDOR | electron nuclear double resonance |
|---|---|
| EPM | electron probe microanalysis; electrophoretic mobility; energy-protein malnutrition |
| EPR | early progressive resistance; electron paramagnetic resonance; electronic patient record; electrophr... |
| EPXMA | electron probe x-ray microanalyzer |
| ERG | electron radiography; electroretinography, electroretinogram |