| DR | degeneration reaction; delivery room; deoxyribose; diabetic retinopathy; diagnostic radiology; digit... |
|---|---|
| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
| ERT | esophageal radionuclide transit; estrogen replacement therapy; examination room terminal; external r... |
| IHRA | isocapnic hyperventilation with room air |
| LAFR | laminar air flow room |