| GIS | gas in stomach; gastrointestinal series; geographic information system; guaranteed income supplement... |
|---|---|
| LFS | lateral facet syndrome; Li-Fraumeni syndrome; limbic forebrain structure; liver function series |
| RC | an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; r... |
| SBS | shaken baby syndrome; short bowel syndrome; sick building syndrome; sinobronchial syndrome; small bo... |
| ser | series, serial |