| IST | inappropriate sinus tachycardia; insulin sensitivity test; insulin shock therapy; International Soci... |
|---|---|
| NTP | National Toxicology Program; nitroprusside; normal temperature and pressure; nucleoside triphosphate... |
| NTU | Navy Toxicology Unit |
| RelTox | Relational Toxicology [Project] |
| TBD | total body density; Toxicology Data Base |