| HR | heart rate; hemorrhagic retinopathy; high resolution; higher rate; histamine receptor; hormonal resp... |
|---|---|
| HRA | health record analyst; health risk appraisal; heart rate audiometry; hereditary renal adysplasia; hi... |
| HRH2 | histamine receptor H2 |
| HSF | heat shock factor; hepatocyte stimulatory factor; histamine sensitizing factor; human serum esterase... |
| IHT | insulin hypoglycemia test; intravenous histamine test; ipsilateral head turning |