| NRI | nerve root involvement; nerve root irritation; nonrespiratory infection |
|---|---|
| PN | papillary necrosis; parenteral nutrition; penicillin; perceived noise; percussion note; periarteriti... |
| AIN | acute interstitial nephritis; American Institute of Nutrition; anterior interosseous nerve |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| OLA | Occipito Laevo Anterior; Left Occipito Anterior; 후두전좌측의 |