| EIMS | electron ionization mass spectrometry |
|---|---|
| CIMS | chemical ionization mass spectrometry |
| RIMS | resonance ionization mass spectrometry |
| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
| EI | Edmonton injector; electrolyte imbalance; electron impact; electron ionization; emotionally impaired... |