| SST | sodium sulfite titration; somatostatin |
|---|---|
| STD | selective T-cell defect; sexually transmitted disease; skin-to-tumor distance; skin test dose; sodiu... |
| STP | phenol-preferring sulfotransferase; scientifically treated petroleum; sodium thiopental; standard te... |
| TIPPS | tetraiodophenylphthalein sodium |
| UNa | urinary sodium |