| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
|---|---|
| EI | Edmonton injector; electrolyte imbalance; electron impact; electron ionization; emotionally impaired... |
| E/M | electron microscope, electron microscopy; evaluation and management |
| e | base of natural logarithms, approximately 2.7182818285; egg transfer; ejection; electric charge; ele... |
| ETA | electron transfer agent; endotracheal airways; ethionamide |