| IRE | internal rotation in extension; iron-responsive element; isolated rabbit eye |
|---|---|
| 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 |
| OTC | Ornithine Trans-Carbamylase |