| ERG | electron radiography; electroretinography, electroretinogram |
|---|---|
| ESCA | electron spectroscopy for chemical analysis |
| ESF | electron scatter function; electrosurgical filter; erythropoietic stimulating factor |
| ESR | Einstein stoke radius; electric skin resistance; electron spin resonance; equipment service report; ... |
| ETA | electron transfer agent; endotracheal airways; ethionamide |