| HA-TCP | hydroxyapatite tricalcium phosphate |
|---|---|
| HAA | haloacetic acid |
| HAA | Heterocyclic aromatic amines |
| HAA | Hospital Activity Analysis |
| HAART | Highly Active Anti-Retroviral Therapy |
| HAART | Highly Active Antiretroviral Therapies |
| HAART | Highly active antiretroviral treatment |
| HAase | Hyaluronidase |
| hAAT | Human alpha 1-antitrypsin |
| HABF | Hepatic arterial blood flow |