| LSI | large-scale integration; life satisfaction index; lumbar spine index |
|---|---|
| LSp | life span |
| LSS | life support station; lumbosacral spine |
| LST | lateral spinothalamic tract; left sacrotransverse [fetal position]; life-sustaining treatment |
| LSTAT | life support for trauma and transport |
| SHRP | stress hyporesponsive period |
|---|---|
| STRE | stress response element |
| U.S.I. | urinary stress incontinence |
| WRS | water immersion and restrain stress |