| SNRB | selective nerve root block |
|---|---|
| SPEAR | selective parenteral and enteral anti-sepsis regimen |
| SPV | selective proximal vagotomy; Shope papilloma virus; sulfophosphovanillin |
| SS | disulfide; sacrosciatic; saline soak; saline solution; saliva sample; saliva substitute; Salmonella-... |
| SSRI | selective serotonin reuptake inhibitor |