| EI | Edmonton injector; electrolyte imbalance; electron impact; electron ionization; emotionally impaired... |
|---|---|
| EIPS | endogenous inhibitor of prostaglandin synthase |
| EPI | echo planar imaging; electronic portal imaging; Emotion Profile Index; epilepsy; epinephrine; epithe... |
| ERI | E-rosette inhibitor |
| HCI | Health Commons Institute; human collagenase inhibitor |