| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |
|---|---|
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| LES | Lower Esophageal Sphincter; 하부 식도 괄약근 |
| LESP | Lower Esophageal Sphincter Prssure |
| UES | Upper Esophageal Sphincter; 상부 식도 괄약근 |