| 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 |
| ATN | acute tubular necrosis; augmented transition network |
| DOUBTFUL | double quantum transition for finding unresolved lines |