| HOB | head of bed |
|---|---|
| HRL | head rotation to the left |
| HRR | head rotation to the right; heart rate range |
| HS | Haber syndrome; half strength; hamstring; hand surgery; Hartmann solution; head sling; healthy subje... |
| HTS | head traumatic syndrome; HeLa tumor suppression; human thyroid-stimulating hormone, human thyroid st... |