| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
|---|---|
| MI | first meiotic metaphase; maturation index; medical illustrator; medical informatics; medical inspect... |
| PICD | primary irritant contact dermatitis |
| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
| RAR | rapidly adapting receptor; rat insulin receptor; retinoic acid receptor; right arm reclining; right ... |