| SISS | Sentinel Injury Surveillance System [for Gunshot and Stab Wounds] small inducible secreted substance... |
|---|---|
| SL | sarcolemma; sclerosing leukoencephalopathy; secondary leukemia; segment length; sensation level; sen... |
| SLL | small lymphocytic lymphoma |
| sm | an small animal |
| SMBFT | small bowel follow-through |