| ECS | elective cosmetic surgery; electrocerebral silence; electroconvulsive shock, electroshock; endocervi... |
|---|---|
| IFS | interstitial fluid space |
| IVS | inappropriate vasopressin secretion; intervening sequence; interventricular septum; intervillous spa... |
| LICS | left intercostal space |
| NASA | National Aeronautics and Space Administration |