| AHI | active hostility index; Animal Health Institute; apnea-plus-hypopnea index |
|---|---|
| DVA | developmental venous anomaly; distance visual acuity; duration of voluntary apnea; vindesine |
| HSA | Hazardous Substances Act; Health Services Administration; health systems agency; hereditary siderobl... |
| IAS | immunosuppressive acidic substance; infant apnea syndrome; insulin autoimmune syndrome; interatrial ... |
| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |