| HLI | human leukocyte interferon |
|---|---|
| HPBL | human peripheral blood leukocyte |
| HUIFM | human leukocyte interferon meloy |
| IFLrA | recombinant human leukocyte interferon A |
| LAD | lactic acid dehydrogenase; left anterior descending [artery]; left axis deviation; leukocyte adhesio... |
| lymphogranuloma venereum antigen | A sterile preparation of inactivated chlamydiae grown in the yolk sac of domestic fowl and used as an antigen in the Frei test. (05 Mar 2000) |
|---|---|
| Lyt antigen | A set of plasmalemmal surface glycoproteins on mouse T lymphocytes. Possession of Lyt 1 partly defines a T helper cell and of Lyt 2, 3 suppressor and cytotoxic cells. Formerly known as Ly antigens. See: Lyb antigen. (18 Nov 1997) |