| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
|---|---|
| SEM | sample evaluation method; scanning electron microscopy; secondary enrichment medium; standard error ... |
| STEM | scanning transmission electron microscope; Society of Teachers of Emergency Medicine |
| TSEM | transmission scanning electron microscopy |
| EI | Edmonton injector; electrolyte imbalance; electron impact; electron ionization; emotionally impaired... |