| HTA | heterophil transplantation antigen; human thymocyte antigen; hydroxytryptamine; hypophysiotropic are... |
|---|---|
| LAA | left atrial appendage; left atrial area; leukemia-associated antigen; leukocyte ascorbic acid |
| LACN | local area communications network |
| LAN | local area network; long-acting neuroleptic [agent] |
| LHA | lateral hypothalamic area; left hepatic artery |