| IVS | inappropriate vasopressin secretion; intervening sequence; interventricular septum; intervillous spa... |
|---|---|
| LICS | left intercostal space |
| NASA | National Aeronautics and Space Administration |
| PAS | para aminosalicylate; Parent Attitude Scale; patient administration system; patient appointments and... |
| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |