| ULTC | urban level trauma center |
|---|---|
| VDL | vasodepressor lipid; visual detection level |
| WL | waiting list; waterload; wavelength; withdrawal; working level; workload |
| WLM | white light microscopy; working level month [radon] |
| TLV-C | Threshold Limit Value-Ceiling = MAC(Maximum Allowable Concentration) ... |