| SU | salicyluric acid; secretory unit; sensation unit; solar urticaria; sorbent unit; spectrophotometric ... |
|---|---|
| EI | Edmonton injector; electrolyte imbalance; electron impact; electron ionization; emotionally impaired... |
| E/M | electron microscope, electron microscopy; evaluation and management |
| ACU | acquired cold urticaria; acute care unit; agar colony-forming unit; ambulatory care unit |
| BU | base of prism up; Bethesda unit; blood urea; Bodansky unit; bromouracil; burn unit |