| FUO | fever of unknown origin |
|---|---|
| HBF | hand blood flow; hemispheric blood flow; hemoglobinuric bilious fever; hepatic blood flow; hypothala... |
| HERS | Health Evaluation and Referral Service; hemorrhagic fever with renal syndrome |
| HFD | hemorrhagic fever of deer; high-fiber diet; high forceps delivery; hospital field director; human fa... |
| HFRS | hemorrhagic fever with renal syndrome |