| EVD | external ventricular drainage; extravascular [lung] density |
|---|---|
| FTD | femoral total density |
| GDB | gas density balance; guide dogs for the blind |
| HCTD | hepatic computed tomography density |
| HD | Haab-Dimmer [syndrome]; Hajna-Damon [broth]; Hansen disease; hearing distance; heart disease; helix ... |