| SMAL | serum methyl alcohol level |
|---|---|
| SSPL | saturation sound pressure level |
| STL | serum theophylline level; status thymicolymphaticus; stereolithography; swelling, tenderness and lim... |
| TDL | thoracic duct lymph; thymus-dependent lymphocyte; toxic dose level |
| ULTC | urban level trauma center |