| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
|---|---|
| BRW | Brown-Robert-Wells [stereotactic system] |
| SEEG | stereotactic electroencephalography |
| SMT | spontaneous mammary tumor; stereotactic mesencephalic tractomy |
| SSCT | stereotactic subcaudate tractotomy |