| AHPO | anterior hypothalamic preoptic [area] |
|---|---|
| AHS | Academy of Health Sciences; African horse sickness; alveolar hypoventilation syndrome; American Hear... |
| AHSDF | area health service development fund |
| AIM | Abridged Index Medicus; acute transverse myelopathy; area of interest magnification; artificial inte... |
| AL | angiographic area of lateral projection |