| AHCD | acquired hepatocellular degeneration |
|---|---|
| AHD | acquired hepatocerebral degeneration; acute heart disease; antihyaluronidase; antihypertensive drug;... |
| AID | acquired immunodeficiency disease; acute infectious disease; acute ionization detector; Agency for I... |
| AIDS | acquired immune deficiency syndrome |
| AIDSDRUGS | clinical trials of acquired immunodeficiency drugs [MEDLARS data base] |