| IRA | immunoradioassay; immunoregulatory alpha-globulin; inactive renin activity |
|---|---|
| JAS | Jenkins Activity Survey; juvenile ankylosing spondylitis |
| LCA | left circumflex artery; left coronary artery; leukocyte common antigen; lithocholic acid; lymphocyte... |
| LFA | left femoral artery; left frontal craniotomy; left fronto-anterior [fetal position]; leukocyte funct... |
| LIA | Laser Institute of America; leukemia-associated inhibitory activity; lock-in amplifier; lymphocyte-i... |