| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
|---|---|
| Q fever | query fever |
| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
| BD | barbital-dependent; barbiturate dependence; base deficit; base of prism down; basophilic degeneratio... |
| CDC | calculated date of confinement; cancer diagnosis center; capillary diffusion capacity; cell division... |