| UE | uncertain etiology; under elbow; uninvolved epidermis; upper esophagus; upper extremity |
|---|---|
| URI | uniform resource identifier; upper respiratory illness; upper respiratory infection |
| US | screen unsharpness ultrasonic, ultrasound; ultrasonography; unconditioned stimulus; unique sequence;... |
| LCC | lactose coliform count; left circumflex coronary (artery); left common carotid; left coronary cusp; ... |
| LFA | left femoral artery; left frontal craniotomy; left fronto-anterior [fetal position]; leukocyte funct... |