| CSS | Cancer Surveillance System; carotid sinus stimulation; carotid sinus syndrome; cavernous sinus syndr... |
|---|---|
| SAS | sarcoma amplified sequence; self-rating anxiety scale; short arm splint; Sklar Aphasia Scale; sleep ... |
| SIS | semantic indexing system; serotinin irritation syndrome; simian sarcoma; simulator-induced syndrome;... |
| SWI | sterile water for injection; stroke work index; surgical wound infection |
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |