| ADFR | activate, depress, free, repeat [coherence therapy] |
|---|---|
| DR | degeneration reaction; delivery room; deoxyribose; diabetic retinopathy; diagnostic radiology; digit... |
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| LRT | local radiation therapy; long terminal repeat; lower respiratory tract |
| LTR | location transactivating region; long terminal repeat |