| CEM | computerized electroencephalographic map; conventional transmission electron microscope |
|---|---|
| STEM | scanning transmission electron microscope; Society of Teachers of Emergency Medicine |
| TEM | transmission electron microscope/ microscopy; triethylenemelamine |
| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
| E/M | electron microscope, electron microscopy; evaluation and management |