| LR | labeled release; laboratory references; laboratory report; labor room; lactated Ringer [solution]; l... |
|---|---|
| LU | left upper [limb]; loudness unit; Lupron; lytic unit |
| LUL | left upper eyelid; left upper limb; left upper lobe; left upper lung |
| MLRD | microgastria-limb reduction defects [association] |
| MTAL | medullary thick ascending limb |