| UL | ultrasonic; Underwriters Laboratories; undifferentiated lymphoma; upper limb; upper limit; upper lob... |
|---|---|
| SB | Bachelor of Science; Schwartz-Bartter [syndrome]; serum bilirubin; shortness of breath; sick bay; si... |
| SCA | self-care agency; severe congenital anomaly; sickle-cell anemia; single-camera autostereoscopic [ima... |
| SSB | short spike burst; sicca syndrome B; single-strand break; single-stranded binding [protein]; stereos... |
| SUA | serum uric acid; single umbilical artery; single unit activity |