| 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 |