| LLA | limulus lysate assay |
|---|---|
| LAL | left axillary line; Limulus amebocyte lysate; low air loss; lysosomal acid lipase |
| LAI assay | Leukocyte Adherence Inhibition assay |
| ERA | electrical response activity; electroencephalic response audiometry; Electroshock Research Associati... |
| IFA | idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Fr... |