| SIHE | spontaneous intramural hematoma of the esophagus |
|---|---|
| SIS | semantic indexing system; serotinin irritation syndrome; simian sarcoma; simulator-induced syndrome;... |
| SK | seborrheic keratosis; senile keratosis; Sloan-Kettering [Institute for Cancer Research]; spontaneous... |
| SLMC | spontaneous lymphocyte-mediated cytotoxicity |
| SMA | sequential multiple analysis or analyzer; sequential multichannel autoanalyzer; simultaneous multich... |