| HDF | host defense factor; human diploid fibroblast |
|---|---|
| HELF | human embryo lung fibroblast |
| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
| HFF | human foreskin fibroblast |
| HFI | hereditary fructose intolerance; human fibroblast interferon |