| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
|---|---|
| PAT | Pain Apperception Test; paroxysmal atrial tachycardia; patient; phenylaminotetrazole; physical abili... |
| MIT | Massachusetts Institute of Technology; male impotence test; marrow iron turnover; melodic intonation... |
| EIC | elastase inhibition capacity; enzyme inhibition complex |
| LAI | latex particle agglutination inhibition; leukocyte adherence inhibition |