| SSR | site-specific recombination; somatosensory response; surgical supply room |
|---|---|
| STS | sequence tagged site; serologic test for syphilis; sodium tetradecyl sulfate; sodium thiosulfate; st... |
| UAS | upper abdomen surgery; upstream activation site |
| VAS | vascular; ventriculo-atrial shunt; Verapamil Angioplasty Study; vesicle attachment site; viral arthr... |
| IVS | Intra Vascular Site |