| LR | labeled release; laboratory references; laboratory report; labor room; lactated Ringer [solution]; l... |
|---|---|
| MLAEP | middle latency auditory evoked potential |
| ERA | electrical response activity; electroencephalic response audiometry; Electroshock Research Associati... |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| MEC | median effective concentration; middle ear canal; middle ear cell; minimum effective concentration |