| TTI | tension-time index; time-tension index; timepto-intubation; torque-time interval; transtracheal insu... |
|---|---|
| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
| ST | esotropia; scala tympani; scaphotrapezoid; sclerotherapy; sedimentation time; semitendinosus; sensor... |
| ESA | Electrolysis Society of America; endocardial surface area; epidermal surface antigen; esterase; este... |
| SA | salicylic acid; saline [solution]; salt added; sarcoidosis; sarcoma; scalenus anticus; secondary ame... |