| CRM | Certified Reference Materials; counting rate meter; cross-reacting material; crown-rump measurement |
|---|---|
| ECM | electronic claims management; embryonic chick muscle; erythema chronicum migrans; experimental cereb... |
| EDAM | electron-dense amorphous material |
| EGM | electrogram; extracellular granular material |
| EIM | excitability-inducing material |