| FN | false negative; fibronectin; fluoride number |
|---|---|
| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
| PMSF | phenylmethylsulfonyl fluoride |
| PVDF | polyvinylidene difluoride; polyvinyl diisopropyl fluoride |